FORM OF ORIGINAL ISSUE DISCOUNT 10% SECURED CONVERTIBLE NOTE DUE OCTOBER 17, 2017

NEITHER THIS SECURITY NOR THE SECURITIES INTO WHICH THIS SECURITY IS CONVERTIBLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS AS EVIDENCED BY A LEGAL OPINION OF COUNSEL TO THE TRANSFEROR TO SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE COMPANY. THIS SECURITY AND THE SECURITIES ISSUABLE UPON CONVERSION OF THIS SECURITY MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN SECURED BY SUCH SECURITIES.

Original Issue Date: October 17, 2016

$_______

FORM OF ORIGINAL ISSUE DISCOUNT
10% SECURED CONVERTIBLE NOTE
DUE OCTOBER 17, 2017

THIS 10% SECURED CONVERTIBLE NOTE (the “Note) is issued at an approximately 10.0% original issue discount (resulting in the lending of $_______) by Sigma Labs, Inc., a Nevada corporation (the “Company”).

FOR VALUE RECEIVED, the Company promises to pay to _______ or its registered assigns (the “Holder”), or shall have paid pursuant to the terms hereunder, the principal sum of $_______ and accrued interest on the date that is twelve (12) months from the Original Issue Date (the “Maturity Date”) or such earlier date as this Note is required or permitted to be repaid as provided hereunder, and to pay interest to the Holder on the aggregate unconverted and then outstanding principal amount of this Note in accordance with the provisions hereof. Upon an Event of Default, the Purchaser shall have the right to accelerate the due date of this Note in which the Company shall immediately pay the Holder 110% of the outstanding balance of the Note accrued interest and any other sums provided for by this Note.

This Note is subject to the following additional provisions:

Section 1.

Definitions. For the purposes hereof, (a) capitalized terms not otherwise defined herein shall have the meanings set forth in the Purchase Agreement and (b) the following terms shall have the following meanings:

“Alternate Consideration” shall have the meaning set forth in Section 5(e).

“Amortization Payment” shall have the meaning set forth in Section 2(b).

“Bankruptcy Event” means any of the following events: (a) the Company or any Significant Subsidiary (as such term is defined in Rule 1-02(w) of Regulation S-X) thereof commences a case or other proceeding under any bankruptcy, reorganization, arrangement, adjustment of debt, relief of debtors, dissolution, insolvency or liquidation or similar law of any jurisdiction relating to the Company or any Significant Subsidiary thereof, (b) there is commenced against the Company or any Significant Subsidiary thereof any such case or proceeding that is not dismissed within 60 days after commencement, (c) the Company or any Significant Subsidiary thereof is adjudicated insolvent or bankrupt or any order of relief or other order approving any such case or proceeding is entered, (d) the Company or any Significant Subsidiary thereof suffers any appointment of any custodian or the like for it or any substantial part of its property that is not discharged or stayed within 60 calendar days after such appointment, (e) the Company or any Significant Subsidiary thereof makes a general assignment for the benefit of creditors, (f) the Company or any Significant Subsidiary thereof calls a meeting of its creditors with a view to arranging a composition, adjustment or restructuring of its debts or (g) the Company or any Significant Subsidiary thereof, by any act or failure to act, expressly indicates its consent to, approval of or acquiescence in any of the foregoing or takes any corporate or other action for the purpose of effecting any of the foregoing.

“Base Conversion Price” shall have the meaning set forth in Section 5(b).

“Beneficial Ownership Limitation” shall have the meaning set forth in Section 4(d).

“Black Scholes Value” means the value of the outstanding principal amount of this Note, plus all accrued and unpaid interest hereon based on the Black and Scholes Option Pricing Model obtained from the “OV” function on Bloomberg, L.P. (“Bloomberg”) determined as of the day of consummation of the applicable Fundamental Transaction for pricing purposes and reflecting (A) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the time between the date of the public announcement of the applicable Fundamental Transaction and the Maturity Date, (B) an expected volatility equal to the greater of 100% and the 100 day volatility obtained from the HVT function on Bloomberg as of the Trading Day immediately following the public announcement of the applicable Fundamental Transaction, (C) the underlying price per share used in such calculation shall be the sum of the price per share being offered in cash, if any, plus the value of any non-cash consideration, if any, being offered in such Fundamental Transaction and (D) a remaining option time equal to the time between the date of the public announcement of the applicable Fundamental Transaction and the Maturity Date.

“Business Day” means any day except any Saturday, any Sunday, any day which is a federal legal holiday in the United States or any day on which banking institutions in the State of New York are authorized or required by law or other governmental action to close.

“Buy-In” shall have the meaning set forth in Section 4(c)(v).

“Change of Control Transaction” means the occurrence after the date hereof of any of (a) an acquisition after the date hereof by an individual or legal entity or “group” (as described in Rule 13d-5(b)(1) promulgated under the Exchange Act) of effective control (whether through legal or beneficial ownership of capital stock of the Company, by contract or otherwise) of in excess of 50% of the voting securities of the Company (other than by means of conversion, exercise or exchange of the Notes or the Securities issued together with the Notes, or as the result of the issuance of securities in the Public Offering), (b) the Company merges into or consolidates with any other Person, or any Person merges into or consolidates with the Company and, after giving effect to such transaction, the shareholders of the Company immediately prior to such transaction own less than 50% of the aggregate voting power of the Company or the successor entity of such transaction, (c) the Company sells or transfers all or substantially all of its assets to another Person and the shareholders of the Company immediately prior to such transaction own less than 50% of the aggregate voting power of the acquiring entity immediately after the transaction, (d) a replacement at one time or within a three year period of more than one-half of the members of the Board of Directors which is not approved by a majority of those individuals who are members of the Board of Directors on the Original Issue Date (or by those individuals who are serving as members of the Board of Directors on any date whose nomination to the Board of Directors was approved by a majority of the members of the Board of Directors who are members on the date hereof), or (e) the execution by the Company of an agreement to which the Company is a party or by which it is bound, providing for any of the events set forth in clauses (a) through (d) above.

“Collateral Agent” is L1 Capital Global Opportunities Master Fund, Ltd.

“Conversion” shall have the meaning ascribed to such term in Section 4.

“Conversion Date” shall have the meaning set forth in Section 4(a).

“Conversion Price” shall have the meaning set forth in Section 4(b).

“Conversion Schedule” means the Conversion Schedule in the form of Schedule 1 attached hereto.

“Conversion Shares” means, collectively, the shares of Common Stock issuable upon conversion of this Note in accordance with the terms hereof.

“Default Conversion Price” shall have the meaning set forth in Section 4(b).

“Dilutive Issuance” shall have the meaning set forth in Section 5(b).

“Dilutive Issuance Notice” shall have the meaning set forth in Section 5(b).

“DWAC” means the Deposit or Withdrawal at Custodian system at The Depository Trust Company.

“Event of Default” shall have the meaning set forth in Section 7(a).

“Exempt Issuance” shall have the meaning set forth in the Purchase Agreement.

“Fundamental Transaction” shall have the meaning set forth in Section 5(e).

“Indebtedness” shall have the meaning set forth in the Purchase Agreement.

“Late Fees” shall have the meaning set forth in Section 2(c).

“Liens” shall have the meaning set forth in the Purchase Agreement.

“Mandatory Default Amount” means the sum of (a) 110% of the outstanding principal amount of this Note, plus 100% of accrued and unpaid interest hereon, and (b) all other amounts, costs, expenses and liquidated damages due in respect of this Note.

“New York Courts” shall have the meaning set forth in Section 8(e).

“Note Register” shall have the meaning set forth in Section 2(b).

“Notice of Conversion” shall have the meaning set forth in Section 4(a).

“Option Value” means the value of a Common Stock Equivalent based on the Black Scholes Option Pricing model obtained from the “OV” function on Bloomberg determined as of (A) the Trading Day prior to the public announcement of the issuance of the applicable Common Stock Equivalent, if the issuance of such Common Stock Equivalent is publicly announced or (B) the Trading Day immediately following the issuance of the applicable Common Stock Equivalent if the issuance of such Common Stock Equivalent is not publicly announced, for pricing purposes and reflecting (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the remaining term of the applicable Common Stock Equivalent as of the applicable date of determination, (ii) an expected volatility equal to the greater of 100% and the 100 day volatility obtained from the HVT function on Bloomberg as of (A) the Trading Day immediately following the public announcement of the applicable Common Stock Equivalent if the issuance of such Common Stock Equivalent is publicly announced or (B) the Trading Day immediately following the issuance of the applicable Common Stock Equivalent if the issuance of such Common Stock Equivalent is not publicly announced, (iii) the underlying price per share used in such calculation shall be the highest VWAP of the Common Stock during the period beginning on the Trading Day prior to the execution of definitive documentation relating to the issuance of the applicable Common Stock Equivalent and ending on (A) the Trading Day immediately following the public announcement of such issuance, if the issuance of such Common Stock Equivalent is publicly announced or (B) the Trading Day immediately following the issuance of the applicable Common Stock Equivalent if the issuance of such Common Stock Equivalent is not publicly announced, (iv) a zero cost of borrow and (v) a 360 day annualization factor.

“Original Issue Date” means the date of the first issuance of the Note, regardless of any transfers of any Note and regardless of the number of instruments which may be issued to evidence such Note.

“Payment Date” shall have the meaning set forth in Section 2(b).

“Permitted Indebtedness” means (a) the indebtedness evidenced by the Note, (b) capital lease obligations and purchase money indebtedness incurred in connection with the acquisition of machinery and equipment, (c) indebtedness obtained to repay this Note, and (d) any other subordinated indebtedness as long as 40% of the proceeds are used to repay the initial principal balance of this Note until the aggregate balance of the Notes is $500,000.00, provided, however, that if the Note balance is less than $500,000.00, no proceeds of such other subordinated indebtedness are required to be used to make a prepayment of this Note. No prepayment penalties shall apply in the event repayment is required pursuant to clause (d) of the previous sentence.

“Permitted Lien” means the individual and collective reference to the following: (a) Liens for taxes, assessments and other governmental charges or levies not yet due or Liens for taxes, assessments and other governmental charges or levies being contested in good faith and by appropriate proceedings for which adequate reserves (in the good faith judgment of the management of the Company) have been established in accordance with GAAP, (b) Liens imposed by Law which were incurred in the ordinary course of the Company’s business, such as carriers’, warehousemen’s and mechanics’ Liens, statutory landlords’ Liens, and other similar Liens arising in the ordinary course of the Company’s business, and which (x) do not individually or in the aggregate materially detract from the value of such property or assets or materially impair the use thereof in the operation of the business of the Company and its consolidated Subsidiaries or (y) are being contested in good faith by appropriate proceedings, which proceedings have the effect of preventing for the foreseeable future the forfeiture or sale of the property or asset subject to such Lien, (c) Liens incurred in connection with Permitted Indebtedness under clauses (a) and (b) thereunder, (d) Liens incurred in connection with Permitted Indebtedness under clause (c) thereunder, provided that such Liens are not secured by assets of the Company or its Subsidiaries other than the assets so acquired or leased, and (e) Liens incurred in connection with Permitted Indebtedness under clause (d) thereunder, so long as such Liens secured by any assets of the Company or its Subsidiaries are subordinate to Liens incurred hereunder.

“Pre-Payment Amount” shall mean 115% of the then outstanding principal of the Note.

“Purchase Agreement” means the Securities Purchase Agreement, dated as of October 17, 2016 among the Company and the original Holder, as amended, modified or supplemented from time to time in accordance with its terms.

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

“Security Agreement” means an agreement between the Company and the Collateral Agent which gives the Holder and other holders a first priority Lien on all of the assets of the Company.

“Share Delivery Date” shall have the meaning set forth in Section 4(c)(ii).

“Successor Entity” shall have the meaning set forth in Section 5(e).

“Trading Day” means a day on which the principal Trading Market is open for trading.

“Trading Market” means any of the following markets or exchanges on which the Common Stock is listed or quoted for trading on the date in question: the NYSE MKT, the Nasdaq Capital Market, the Nasdaq Global Market, the Nasdaq Global Select Market, the New York Stock Exchange, or any market of the OTC Markets, Inc. (or any successors to any of the foregoing).

“VWAP” means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is then listed or quoted on a Trading Market, the daily volume weighted average price of the Common Stock for such date (or the nearest preceding date) on the Trading Market on which the Common Stock is then listed or quoted as reported by Bloomberg L.P. (based on a Trading Day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time)), (b) if OTCQB or OTCQX is not a Trading Market, the volume weighted average price of the Common Stock for such date (or the nearest preceding date) on OTCQB or OTCQX as applicable, (c) if the Common Stock is not then listed or quoted for trading on the OTCQB or OTCQX and if prices for the Common Stock are then reported by the OTC Pink marketplace published by OTC Markets, Inc. (or a similar organization or agency succeeding to its functions of reporting prices), the most recent bid price per share of the Common Stock so reported, or (d) in all other cases, the fair market value of a share of Common Stock as determined by an independent appraiser selected in good faith by the Holder and reasonably acceptable to the Company, the fees and expenses of which shall be paid by the Company.

Section 2.

Interest; Amortization Payment.

(a)

Interest. Interest shall accrue to the Holder on the aggregate unconverted and then outstanding principal amount of this Note at the rate of ten percent (10%) per annum, calculated on the basis of a 360-day year and shall accrue monthly commencing on the Original Issue Date until payment in full of the outstanding principal (or conversion to the extent applicable), together with all accrued and unpaid interest, liquidated damages and other amounts which may become due hereunder, has been made. Following an Event of Default regardless of whether such Event of Default has been cured or remains ongoing, the Company shall immediately pay the Holder a sum equal to 10% of the outstanding principal of the Note in lieu of default interest. For avoidance of doubt, the Holder shall not be entitled to a double payment under Section 7(b) or under the definition of Mandatory Default Amount. The Company shall make interest payments in cash, or, at the Holder’s option, in unrestricted shares of Common Stock, if a registration statement is then in effect for such shares of common stock, as provided in the next sentence, every three months following the Original Issue Date (any such date, an “Interest Payment Date”). If the Holder elects to receive an interest payment in shares of Common Stock, it shall provide the Company with at least three (3) calendar days notice. In such event, the number of shares shall be calculated using the following formula: X = Y/Z, where X is the amount of shares to be issued, Y is the amount of interest due, and Z is the Conversion Price.

(b)

Intentionally Left Blank.

(c)

Payment in Cash. All payments shall be made in cash on any Payment Date or Conversion Date, unless the Holder elects to be paid in Common Stock under Section 2(a) or Section 4.

(d)

Reserved.

(e)

Repayment from the proceeds of the Public Offering.

(i)

At the option of the Holder, the Company shall repay this Note by paying the Holder the outstanding principal and accrued and unpaid interest on the date which is 30 days after the Company raises at least $5 million in gross proceeds from the Public Offering. Holder must give a minimum of twenty (20) days written notice to the Company of its election to exercise this option. This mandatory repayment is subject to the Company raising at least $5 million in gross proceeds from the Public Offering. No prepayment penalty shall apply in the event of repayment pursuant to this Section 2(e)(i). In the event of repayment pursuant to this Section 2(e)(i), the repayment amount due shall be 100% of the then outstanding principal and interest.

(ii)

At any time and subject to prior conversion at the then applicable Conversion Price, the Company may on at least fifteen (15) Trading Days notice prepay the Note by paying the Holder the Pre-Payment Amount together with accrued and unpaid interest.

(iii)

At the option of the Holder, on at least three (3) calendar days notice, if the Company raises any money from the sale of equity (other than as provided in Section 2(e)(i) and other than Exempt Issuances) or from the issuance of any indebtedness (other than Permitted Indebtedness), or any combination thereof, the Company shall use 40% of the proceeds to pre-pay the initial principal balance of this Note until the aggregate balance of the Notes is $500,000.00. No prepayment penalties shall apply in the event of repayment pursuant to this Section 2(e)(iii) but the Pre-Payment Amount shall be payable upon any other pre-payment, except for repayment from proceeds of the Public Offering.

Section 3.

Registration of Transfers and Exchanges.

(a)

Different Denominations. This Note is exchangeable for an equal aggregate principal amount of Notes of different authorized denominations, as requested by the Holder surrendering the same. No service charge will be payable for such registration of transfer or exchange.

(b)

Investor Representations. This Note has been issued subject to certain investment representations of the original Holder set forth in the Purchase Agreement and may be transferred or exchanged only in compliance with the Purchase Agreement and applicable federal and state securities laws and regulations.

(c)

Reliance on Note Register. Prior to due presentment for transfer to the Company of this Note, the Company and any agent of the Company may treat the Person in whose name this Note is duly registered on the Note Register as the owner hereof for the purpose of receiving payment as herein provided and for all other purposes, whether or not this Note is overdue, and neither the Company nor any such agent shall be affected by notice to the contrary.

Section 4.

Conversion.

(a)

Voluntary Conversion. After the Original Issue Date until this Note is no longer outstanding, this Note shall be convertible, in whole or in part, at any time, and from time to time, into Conversion Shares at the option of the Holder. The Holder shall effect conversions by delivering to the Company a Notice of Conversion, the form of which is attached hereto as Annex A (each, a “Notice of Conversion”), specifying therein the principal amount of this Note, and accrued interest, if any, (based upon the amount of the outstanding principal of the Note or the Mandatory Default Amount, as applicable), to be converted and the date on which such conversion shall be effected (such date, the “Conversion Date”). If no Conversion Date is specified in a Notice of Conversion, the Conversion Date shall be the date that such Notice of Conversion is deemed delivered hereunder. No ink-original Notice of Conversion shall be required, nor shall any medallion guarantee (or other type of guarantee or notarization) of any Notice of Conversion form be required. To effect conversions hereunder, the Holder shall not be required to physically surrender this Note to the Company unless the entire principal amount of this Note, plus all accrued and unpaid interest thereon, has been so converted. Conversions hereunder shall have the effect of lowering the outstanding principal amount of this, and accrued interest if converted, Note in an amount equal to the applicable conversion. The Holder and the Company shall maintain records showing the principal amount(s) converted in each conversion, the date of each conversion, and the Conversion Price in effect at the time of each conversion. The Company may deliver an objection to any Notice of Conversion within one Business Day of delivery of such Notice of Conversion. In the event of any dispute or discrepancy, the records of the Holder shall be controlling and determinative in the absence of manifest error. The Holder, and any assignee by acceptance of this Note, acknowledge and agree that, by reason of the provisions of this paragraph, following conversion of a portion of this Note, the unpaid and unconverted principal amount of this Note may be less than the amount stated on the face hereof.

(b)

Conversion Price. Subject to Section 5, the “Conversion Price” in effect on any Conversion Date means, as of any Conversion Date or other date of determination, the lower of (i) the unit price of the Company’s public offering initially filed with the SEC on July 28, 2016 (the “Public Offering”) as reflected on the final prospectus filed under Rule 424(b) under the Securities Act, or (ii) 150% of the closing price of the Company’s Common Stock as reported by the principal Trading Market on the Initial Issue Date. If an Event of Default occurs, the Conversion Price shall be equal to 70% multiplied by the average VWAP for the preceding four Trading Days prior to the date notice of conversion is delivered to the Company by the Holder (the “Default Conversion Price”).

(c)

Mechanics of Conversion or Prepayment.

(i)

Conversion Shares Issuable Upon Conversion of Principal Amount. The number of Conversion Shares issuable upon a conversion hereunder shall be determined by the quotient obtained by dividing (x) the outstanding principal amount, and accrued interest, if any, of this Note to be converted by (y) the Conversion Price in effect at the time of such conversion.

(ii)

Delivery of Certificate Upon Conversion. Not later than three (3) Trading Days (or two Trading Days if Exchange Act Rule 15c6-1(a) is amended by the SEC to provide for settlement within two business days after a trade has been executed) after each Conversion Date (the “Share Delivery Date”), the Company shall deliver, or cause to be delivered, to the Holder any certificate or certificates required to be delivered by the Company under this Section 4(c) electronically through the Depository Trust Company or another established clearing corporation performing similar functions, so long as, no later than the Conversion Date, the Holder and the Holder’s broker have provided to the Company or the Company’s transfer agent all customary documents requested by the Company’s transfer agent in connection with the foregoing delivery.

(iii)

Failure to Deliver Certificates. If, in the case of any Notice of Conversion, such certificate or certificates are not delivered to or as directed by the applicable Holder by the Share Delivery Date, the Holder shall be entitled to elect by written notice to the Company at any time on or before its receipt of such certificate or certificates, to rescind such Conversion, in which event the Company shall promptly return to the Holder any original Note delivered to the Company and the Holder shall promptly return to the Company the Common Stock certificates issued to such Holder pursuant to the rescinded Conversion Notice.

(iv)

Obligation Absolute; Partial Liquidated Damages. The Company’s obligations to issue and deliver the Conversion Shares upon conversion of this Note or upon its election to pay interest in accordance with the terms hereof, are absolute and unconditional, irrespective of any action or inaction by the Holder to enforce the same, any waiver or consent with respect to any provision hereof, the recovery of any judgment against any Person or any action to enforce the same, or any setoff, counterclaim, recoupment, limitation or termination, or any breach or alleged breach by the Holder or any other Person of any obligation to the Company or any violation or alleged violation of Law by the Holder or any other Person, and irrespective of any other circumstance which might otherwise limit such obligation of the Company to the Holder in connection with the issuance of such Conversion Shares or prepayment of this Note; provided, however, that such delivery or prepayment shall not operate as a waiver by the Company of any such action the Company may have against the Holder. In the event the Holder of this Note shall elect to convert any or all of the outstanding principal amount hereof, the Company may not refuse conversion or prepayment based on any claim that the Holder or anyone associated or affiliated with the Holder has been engaged in any violation of Law, agreement or for any other reason, unless an injunction from a court, on notice to Holder, restraining and or enjoining conversion or prepayment of all or part of this Note shall have been sought and obtained, and the Company posts a surety bond for the benefit of the Holder in the amount of 150% of the outstanding principal amount of this Note, which is subject to the injunction, which bond shall remain in effect until the completion of arbitration/litigation of the underlying dispute and the proceeds of which shall be payable to the Holder to the extent it obtains judgment. In the absence of such injunction, the Company shall issue Conversion Shares or, if applicable, cash, upon a properly noticed conversion. If the Company fails for any reason to deliver to the Holder such certificate or certificates pursuant to Section 4(c)(ii) by the Share Delivery Date, the Company shall pay to the Holder, in cash, as liquidated damages and not as a penalty, for each $1,000 of principal amount being converted, $10 per Trading Day (increasing to $20 per Trading Day on the fifth (5^th) Trading Day after such Conversion Date) for each Trading Day after such Share Delivery Date until such certificates are delivered or Holder rescinds such conversion. Nothing herein shall limit the Holder’s right to pursue actual damages or declare an Event of Default pursuant to Section 7 hereof for the Company’s failure to deliver Conversion Shares or, if applicable, cash, within the period specified herein and the Holder shall have the right to pursue all remedies available to it hereunder, at Law or in equity including, without limitation, a decree of specific performance and/or injunctive relief. The exercise of any such rights shall not prohibit the Holder from seeking to enforce damages pursuant to any other Section hereof or under applicable Law.

(v)

Compensation for Buy-In on Failure to Timely Deliver Certificates Upon Conversion. In addition to any other rights available to the Holder, if the Company fails for any reason to deliver to the Holder such certificate or certificates by the Share Delivery Date pursuant to Section 4(c)(ii), and if after such Share Delivery Date the Holder is required by its brokerage firm to purchase (in an open market transaction or otherwise), or the Holder’s brokerage firm otherwise purchases, shares of Common Stock to deliver in satisfaction of a sale by the Holder of the Conversion Shares which the Holder was entitled to receive upon the conversion relating to such Share Delivery Date (a “Buy-In”), then the Company shall (A) pay in cash to the Holder (in addition to any other remedies available to or elected by the Holder) the amount, if any, by which (x) the Holder’s total purchase price (including any brokerage commissions fees and taxes, if any) for the Common Stock so purchased exceeds (y) the product of (1) the aggregate number of shares of Common Stock that the Holder was entitled to receive from the conversion at issue multiplied by (2) the actual sale price at which the sell order giving rise to such purchase obligation was executed (including any brokerage commissions fees and taxes, if any) and (B) at the option of the Holder, either reissue (if surrendered) this Note in a principal amount equal to the principal amount of the attempted conversion (in which case such conversion shall be deemed rescinded) or deliver to the Holder the number of shares of Common Stock that would have been issued if the Company had timely complied with its delivery requirements under Section 4(c)(ii). For example, if the Holder purchases Common Stock having a total purchase price of $11,000 to cover a Buy-In with respect to an attempted conversion of this Note with respect to which the actual sale price of the Conversion Shares (including any brokerage commissions fees and taxes, if any) giving rise to such purchase obligation was a total of $10,000 under clause (A) of the immediately preceding sentence, the Company shall be required to pay the Holder $1,000. The Holder shall provide the Company written notice indicating the amounts payable to the Holder in respect of the Buy-In and, upon request of the Company, evidence of the amount of such loss. Nothing herein shall limit a ▇▇▇▇▇▇’s right to pursue any other remedies available to it hereunder, at Law or in equity including, without limitation, a decree of specific performance and/or injunctive relief with respect to the Company’s failure to timely deliver certificates representing shares of Common Stock upon conversion of this Note as required pursuant to the terms hereof.

(vi)

Reservation of Shares Issuable Upon Conversion. The Company covenants that it will reserve and keep available out of its authorized and unissued shares of Common Stock for the purpose of issuances upon conversion of this Note (and other purposes further detailed in the Purchase Agreement), free from preemptive rights or any other actual contingent purchase rights of Persons other than the Holder, not less than the amount of shares designated in Section 4.9 of the Purchase Agreement. The Company covenants that all shares of Common Stock that shall be so issuable shall, upon issue, be duly authorized, validly issued, fully paid and nonassessable.

(vii)

Fractional Shares. No fractional shares or scrip representing fractional shares shall be issued upon the conversion of this Note. As to any fraction of a share which the Holder would otherwise be entitled to purchase upon such conversion, the Company shall at its election, either pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied by the Conversion Price or round up to the next whole share.

(viii)

Transfer Taxes and Expenses. The issuance of certificates for shares of the Common Stock on conversion of this Note shall be made without charge to the Holder hereof for any documentary stamp or similar taxes that may be payable in respect of the issue or delivery of such certificates, provided that, the Company shall not be required to pay any tax that may be payable in respect of any transfer involved in the issuance and delivery of any such certificate upon conversion in a name other than that of the Holder of this Note so converted and the Company shall not be required to issue or deliver such certificates unless or until the Person or Persons requesting the issuance thereof shall have paid to the Company the amount of such tax or shall have established to the satisfaction of the Company that such tax has been paid. The Company shall pay all Transfer Agent fees required for same-day processing of any Notice of Conversion and all fees to the Depository Trust Company (or another established clearing corporation performing similar functions) required for same-day electronic delivery of the Conversion Shares.

(d)

Holder’s Conversion Limitations. The Company shall not effect any conversion of this Note, and a Holder shall not have the right to convert any portion of this Note, to the extent that after giving effect to the conversion set forth on the applicable Notice of Conversion, the Holder (together with the Holder’s Affiliates, and any Persons acting as a group together with the Holder or any of the Holder’s Affiliates) would beneficially own in excess of the Beneficial Ownership Limitation (as defined below). For purposes of the foregoing sentence, the number of shares of Common Stock beneficially owned by the Holder and its Affiliates shall include the number of shares of Common Stock issuable upon conversion of this Note with respect to which such determination is being made, but shall exclude the number of shares of Common Stock which are issuable upon (i) conversion of the remaining, unconverted principal amount of this Note beneficially owned by the Holder or any of its Affiliates and (ii) exercise or conversion of the unexercised or unconverted portion of any other securities of the Company subject to a limitation on conversion or exercise analogous to the limitation contained herein (including, without limitation, any other Notes) beneficially owned by the Holder or any of its Affiliates. Except as set forth in the preceding sentence, for purposes of this Section 4(d), beneficial ownership shall be calculated in accordance with Section 13(d) of the Exchange Act and the rules and regulations promulgated thereunder. To the extent that the limitation contained in this Section 4(d) applies, the determination of whether this Note is convertible (in relation to other securities owned by the Holder together with any Affiliates) and of which principal amount of this Note is convertible shall be in the sole discretion of the Holder, and the submission of a Notice of Conversion shall be deemed to be the Holder’s determination of whether this Note may be converted (in relation to other securities owned by the Holder together with any Affiliates) and which principal amount of this Note is convertible, in each case subject to the Beneficial Ownership Limitation. To ensure compliance with this restriction, the Holder will be deemed to represent to the Company each time it delivers a Notice of Conversion that such Notice of Conversion has not violated the restrictions set forth in this paragraph and the Company shall have no obligation to verify or confirm the accuracy of such determination. In addition, a determination as to any group status as contemplated above shall be determined in accordance with Section 13(d) of the Exchange Act and the rules and regulations promulgated thereunder. For purposes of this Section 4(d), in determining the number of outstanding shares of Common Stock, the Holder may rely on the number of outstanding shares of Common Stock as stated in the most recent of the following: (i) the Company’s most recent periodic or annual report filed with the SEC, as the case may be, (ii) a more recent public announcement by the Company, or (iii) a more recent written notice by the Company or the Company’s transfer agent setting forth the number of shares of Common Stock outstanding. Upon the written or oral request of a Holder, the Company shall within two Trading Days confirm orally and in writing to the Holder the number of shares of Common Stock then outstanding. In any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the conversion or exercise of securities of the Company, including this Note, by the Holder or its Affiliates since the date as of which such number of outstanding shares of Common Stock was reported. The “Beneficial Ownership Limitation” shall be 4.99% of the number of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares of Common Stock issuable upon conversion of this Note held by the Holder. The Holder, upon not less than 61 days’ prior notice to the Company, may increase the Beneficial Ownership Limitation provisions of this Section 4(d) solely with respect to the Holder’s Note, provided that the Beneficial Ownership Limitation in no event exceeds 9.99% of the number of shares of Common Stock outstanding immediately after giving effect to the issuance of shares of Common Stock upon conversion of this Note held by the Holder and the provisions of this Section 4(d) shall continue to apply. Any such increase or decrease will not be effective until the 61st day after such notice is delivered to the Company. The Holder may also decrease the Beneficial Ownership Limitation provisions of this Section 4(d) solely with respect to the Holder’s Note at any time, which decrease shall be effectively immediately upon delivery of notice to the Company. The Beneficial Ownership Limitation provisions of this paragraph shall be construed and implemented in a manner otherwise than in strict conformity with the terms of this Section 4(d) to correct this paragraph (or any portion hereof) which may be defective or inconsistent with the intended Beneficial Ownership Limitation contained herein or to make changes or supplements necessary or desirable to properly give effect to such limitation. The limitations contained in this paragraph shall apply to a successor holder of this Note.

Section 5.

Certain Adjustments.

(a)

Stock Dividends and Stock Splits. If the Company, at any time while this Note is outstanding: (i) pays a stock dividend or otherwise makes a distribution or distributions payable in shares of Common Stock on shares of Common Stock or any Common Stock Equivalents (which, for avoidance of doubt, shall not include any shares of Common Stock issued by the Company upon conversion of, or payment of interest on, the Notes or pursuant to any of the other Transaction Documents), (ii) subdivides outstanding shares of Common Stock into a larger number of shares, (iii) combines (including by way of a reverse stock split) outstanding shares of Common Stock into a smaller number of shares or (iv) issues, in the event of a reclassification of shares of the Common Stock, any shares of capital stock of the Company, then the Conversion Price shall be multiplied by a fraction of which the numerator shall be the number of shares of Common Stock (excluding any treasury shares of the Company) outstanding immediately before such event, and of which the denominator shall be the number of shares of Common Stock outstanding immediately after such event. Any adjustment made pursuant to this Section 5(a) shall become effective immediately after the record date for the determination of shareholders entitled to receive such dividend or distribution and shall become effective immediately after the effective date in the case of a subdivision, combination or re-classification.

(b)

Subsequent Equity Sales. Except for Exempt Issuances, if, at any time, for so long as the Note or any amounts accrued and payable thereunder remain outstanding until such time as the Company closes the Public Offering and receives at least $5 million in gross proceeds from the Public Offering, the Company or any Subsidiary, as applicable, sells or grants any option to purchase or sells or grants any right to reprice, or otherwise disposes of or issues (or announces any sale, grant or any option to purchase or other disposition), any Common Stock or Common Stock Equivalents entitling any Person to acquire shares of Common Stock at an effective price per share that is lower than the Conversion Price then in effect (such lower price, the “Base Conversion Price” and each such issuance or announcement a “Dilutive Issuance”), then the Conversion Price shall be immediately reduced to equal the Base Conversion Price. Such adjustment shall be made whenever such Common Stock or Common Stock Equivalents are issued.

If the price per share for a Dilutive Issuance, is less than the Conversion Price then in effect, or if, after any such issuance of Common Stock Equivalents, the price per share for which shares of Common Stock may be issuable thereafter is amended or adjusted, and such price as so amended shall be less than the Conversion Price in effect at the time of such amendment or adjustment, then the Conversion Price shall be adjusted upon each such issuance or amendment as provided in this Section 5(b). In case any Common Stock Equivalent is issued in connection with the issue or sale of other securities of the Company, together comprising one integrated transaction (including an offering of units), (x) the Common Stock Equivalents will be deemed to have been issued for the Option Value of such Common Stock Equivalents and (y) the other securities issued or sold in such integrated transaction shall be deemed to have been issued or sold for the difference of (I) the aggregate consideration received by the Company less any consideration paid or payable by the Company pursuant to the terms of such other securities of the Company, less (II) the Option Value. If any shares of Common Stock or Common Stock Equivalents are issued or sold or deemed to have been issued or sold for cash, the amount of such consideration received by the Company will be deemed to be the net amount received by the Company therefor. If any shares of Common Stock or Common Stock Equivalents are issued or sold for a consideration other than cash, the amount of such consideration received by the Company will be the fair value of such consideration, except where such consideration consists of publicly traded securities, in which case the amount of consideration received by the Company will be the VWAP of such public traded securities on the date of receipt (or the last Trading Day). If any shares of Common Stock or Common Stock Equivalents are issued to the owners of the non-surviving entity in connection with any merger in which the Company is the surviving entity, the amount of consideration therefor will be deemed to be the fair value of such portion of the net assets and business of the non-surviving entity as is attributable to such shares of Common Stock or Common Stock Equivalents, as the case may be.

If the holder of Common Stock or Common Stock Equivalents outstanding on the Original Issue Date or issued thereafter shall at any time, whether by operation of purchase price adjustments, reset provisions, floating conversion, exercise or exchange prices or otherwise, or due to warrants, options or rights per share which are issued in connection with such issuance, be entitled to receive shares of Common Stock at an effective price per share that is lower than the Conversion Price then in effect, such issuance shall be deemed to have occurred for less than the Conversion Price on such date and such issuance shall be deemed to be a Dilutive Issuance.

If the Company enters into a Variable Rate Transaction despite the prohibition set forth in the Purchase Agreement, the Company shall be deemed to have issued Common Stock or Common Stock Equivalents at the lowest possible conversion price at which such securities may be converted or exercised under the terms of such Variable Rate Transaction.

The Company shall notify the Holder in writing, no later than the Trading Day following the issuance of any Common Stock or Common Stock Equivalents subject to this Section 5(b) (other than any Exempt Issuance), indicating therein the applicable issuance price, or applicable reset price, exchange price, conversion price and other pricing terms (such notice, the “Dilutive Issuance Notice”). For purposes of clarification, whether or not the Company provides a Dilutive Issuance Notice pursuant to this Section 5(b), upon the occurrence of any Dilutive Issuance, the Holder is entitled to receive a number of Conversion Shares based upon the Base Conversion Price on or after the date of such Dilutive Issuance, regardless of whether the Holder accurately refers to the Base Conversion Price in the Notice of Conversion.

The provisions of this Section 5(b) shall apply each time a Dilutive Issuance occurs after the Original Issue Date but prior to the date that the Company closes the Public Offering and receives at least $5 million in gross proceeds from the Public Offering and so long as the Note or any amounts accrued and payable thereunder remain outstanding, but any adjustment of the Conversion Price pursuant to this Section 5(b) shall be downward only. Notwithstanding the foregoing, no adjustment of the Conversion Price will be made under this Section 5(b) in respect of an Exempt Issuance.

(c)

Subsequent Rights Offerings. In addition to any adjustments pursuant to Section 5(a) above,

if at any time the Company grants, issues or sells any Common Stock, Common Stock Equivalents or rights to purchase stock, warrants, securities or other property pro rata to the record holders of any class of shares of Common Stock (the “Purchase Rights”), then the Holder will be entitled to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired if the Holder had held the number of shares of Common Stock acquirable upon complete conversion of this Note (without regard to any limitations on conversion hereof, including without limitation, the Beneficial Ownership Limitation) immediately before the date on which a record is taken for the grant, issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of shares of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights (provided, however, to the extent that the Holder’s right to participate in any such Purchase Right would result in the Holder exceeding the Beneficial Ownership Limitation, then the Holder shall not be entitled to participate in such Purchase Right to such extent (or beneficial ownership of such shares of Common Stock as a result of such Purchase Right to such extent) and such Purchase Right to such extent shall be held in abeyance for the Holder until such time, if ever, as its right thereto would not result in the Holder exceeding the Beneficial Ownership Limitation).

(d)

Pro Rata Distributions. During such time as this Note is outstanding, if the Company shall declare or make any dividend or other distribution of its assets or rights or warrants to acquire its assets, or subscribe for or purchase any security other than Common Stock, to holders of shares of Common Stock, by way of return of capital or otherwise (including, without limitation, any distribution of cash, stock or other securities, property or options by way of a dividend, spin off, reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”), at any time after the issuance of this Note, then, in each such case, the Holder shall be entitled to participate in such Distribution to the same extent that the Holder would have participated therein if the Holder had held the number of shares of Common Stock acquirable upon complete conversion of this Note (without regard to any limitations on exercise hereof, including without limitation, the Beneficial Ownership Limitation) immediately before the date of which a record is taken for such Distribution, or, if no such record is taken, the date as of which the record holders of shares of Common Stock are to be determined for the participation in such Distribution (provided, however, to the extent that the Holder's right to participate in any such Distribution would result in the Holder exceeding the Beneficial Ownership Limitation with respect to the Company or any other publicly-traded corporation subject to Section 13(d) of the Exchange Act, then the Holder shall not be entitled to participate in such Distribution to such extent (or in the beneficial ownership of any shares of common stock as a result of such Distribution to such extent) and the portion of such Distribution shall be held in abeyance for the benefit of the Holder until such time, if ever, as its right thereto would not result in the Holder exceeding the Beneficial Ownership Limitation with respect to the Company or any other publicly-traded corporation subject to Section 13(d) of the Exchange Act).

(e)

Fundamental Transaction. If, at any time while this Note is outstanding, (i) the Company, directly or indirectly, in one or more related transactions effects any merger or consolidation of the Company with or into another Person, (ii) the Company, directly or indirectly, effects any sale, lease, license, assignment, transfer, conveyance or other disposition of all or substantially all of its assets in one or a series of related transactions, (iii) any, direct or indirect, purchase offer, tender offer or exchange offer (whether by the Company or another Person) is completed pursuant to which holders of Common Stock are permitted to sell, tender or exchange their shares for other securities, cash or property and has been accepted by the holders of 50% or more of the outstanding Common Stock, (iv) the Company, directly or indirectly, in one or more related transactions effects any reclassification, reorganization or recapitalization of the Common Stock or any compulsory share exchange pursuant to which the Common Stock is effectively converted into or exchanged for other securities, cash or property, (v) the Company, directly or indirectly, in one or more related transactions consummates a stock or share purchase agreement or other business combination (including, without limitation, a reorganization, recapitalization, spin-off or scheme of arrangement) with another Person whereby such other Person acquires more than 50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the other Person or other Persons making or party to, or associated or affiliated with the other Persons making or party to, such stock or share purchase agreement or other business combination) (each a “Fundamental Transaction”), then, upon any subsequent conversion of this Note, the Holder shall have the right to receive, for each Conversion Share that would have been issuable upon such conversion immediately prior to the occurrence of such Fundamental Transaction (without regard to any limitation on the conversion of this Note), the number of shares of Common Stock of the successor or acquiring corporation or of the Company, if it is the surviving corporation, and any additional consideration (the “Alternate Consideration”) receivable as a result of such Fundamental Transaction by a holder of the number of shares of Common Stock for which this Note is convertible immediately prior to such Fundamental Transaction (without regard to any limitation on the conversion of this Note). For purposes of any such conversion, the determination of the Conversion Price shall be appropriately adjusted to apply to such Alternate Consideration based on the amount of Alternate Consideration issuable in respect of one share of Common Stock in such Fundamental Transaction, and the Company shall apportion the Conversion Price among the Alternate Consideration in a reasonable manner reflecting the relative value of any different components of the Alternate Consideration. If holders of Common Stock are given any choice as to the securities, cash or property to be received in a Fundamental Transaction, then the Holder shall be given the same choice as to the Alternate Consideration it receives upon any conversion of this Note following such Fundamental Transaction. Notwithstanding anything to the contrary, in the event of a Fundamental Transaction that is (1) an all cash transaction, (2) a “Rule 13e-3 transaction” as defined in Rule 13e-3 under the Exchange Act, or (3) a Fundamental Transaction involving a person or entity not traded on a national securities exchange or trading market (with such exchange or market including, without limitation, the Nasdaq Global Select Trading Market, the Nasdaq Global Market, or the Nasdaq Capital Market, The New York Stock Exchange, Inc., the NYSE MKT or the OTCQB), the Company or any Successor Entity (as defined below) shall, at the Holder’s option, exercisable concurrently with the consummation of the Fundamental Transaction, purchase this Note from the Holder by paying to the Holder the higher of (i) an amount of cash equal to the Black Scholes Value of the outstanding principal of this Note on the date of the consummation of such Fundamental Transaction, or (ii) the product of (a) the number of Conversion Shares issuable upon full conversion of this Note (without regard to any limitation on conversion of this Note) and (b) the positive difference between the cash per share paid in such Fundamental Transaction minus the then in effect Conversion Price. The Company shall cause any successor entity in a Fundamental Transaction in which the Company is not the survivor (the “Successor Entity”) to assume in writing all of the obligations of the Company under this Note and the other Transaction Documents (as defined in the Purchase Agreement) in accordance with the provisions of this Section 5(e) pursuant to written agreements in form and substance reasonably satisfactory to the Holder and approved by the Holder (without unreasonable delay) prior to such Fundamental Transaction and shall, at the option of the holder of this Note, deliver to the Holder in exchange for this Note a security of the Successor Entity evidenced by a written instrument substantially similar in form and substance to this Note which is convertible for a corresponding number of shares of capital stock of such Successor Entity (or its parent entity) equivalent to the shares of Common Stock acquirable and receivable upon conversion of this Note (without regard to any limitations on the conversion of this Note) prior to such Fundamental Transaction, and with a conversion price which applies the Conversion Price hereunder to such shares of capital stock (but taking into account the relative value of the shares of Common Stock pursuant to such Fundamental Transaction and the value of such shares of capital stock, such number of shares of capital stock and such conversion price being for the purpose of protecting the economic value of this Note immediately prior to the consummation of such Fundamental Transaction), and which is reasonably satisfactory in form and substance to the Holder. Upon the occurrence of any such Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the provisions of this Note and the other Transaction Documents referring to the “Company” shall refer instead to the Successor Entity), and may exercise every right and power of the Company and shall assume all of the obligations of the Company under this Note and the other Transaction Documents with the same effect as if such Successor Entity had been named as the Company herein. Notwithstanding anything in this Section 5(d), an Exempt Issuance (as defined in the Purchase Agreement) shall not be deemed a Fundamental Transaction.

(f)

Calculations. All calculations under this Section 5 shall be made to the nearest cent or the nearest 1/100^th of a share, as the case may be. For purposes of this Section 5, the number of shares of Common Stock deemed to be issued and outstanding as of a given date shall be the sum of the number of shares of Common Stock (excluding any treasury shares of the Company) issued and outstanding.

(g)

Notice to the Holder.

(i)

Adjustment to Conversion Price. Whenever the Conversion Price is adjusted pursuant to any provision of this Section 5, the Company shall promptly deliver to each Holder a notice setting forth the Conversion Price after such adjustment and setting forth a brief statement of the facts requiring such adjustment.

(ii)

Notice to Allow Conversion by ▇▇▇▇▇▇. If (A) the Company shall declare a dividend (or any other distribution in whatever form) on the Common Stock, (B) the Company shall declare a special nonrecurring cash dividend on or a redemption of the Common Stock, (C) the Company shall authorize the granting to all holders of the Common Stock of rights or warrants to subscribe for or purchase any shares of capital stock of any class or of any rights, (D) the approval of any shareholders of the Company shall be required in connection with any reclassification of the Common Stock, any consolidation or merger to which the Company is a party, any sale or transfer of all or substantially all of the assets of the Company, or any compulsory share exchange whereby the Common Stock is converted into other securities, cash or property or (E) the Company shall authorize the voluntary or involuntary dissolution, liquidation or winding up of the affairs of the Company, then, in each case, the Company shall cause to be filed at each office or agency maintained for the purpose of conversion of this Note, and shall cause to be delivered to the Holder at its last address as it shall appear upon the Note Register, at least 10 calendar days prior to the applicable record or effective date hereinafter specified, a notice stating (x) the date on which a record is to be taken for the purpose of such dividend, distribution, redemption, rights or warrants, or if a record is not to be taken, the date as of which the holders of the Common Stock of record to be entitled to such dividend, distributions, redemption, rights or warrants are to be determined or (y) the date on which such reclassification, consolidation, merger, sale, transfer or share exchange is expected to become effective or close, and the date as of which it is expected that holders of the Common Stock of record shall be entitled to exchange their shares of the Common Stock for securities, cash or other property deliverable upon such reclassification, consolidation, merger, sale, transfer or share exchange, provided that the failure to deliver such notice or any defect therein or in the delivery thereof shall not affect the validity of the corporate action required to be specified in such notice. To the extent that any notice provided hereunder constitutes, or contains, material, non-public information regarding the Company or any of the Subsidiaries (as determined in good faith by the Company), the Company or its successor shall simultaneously file such notice with the SEC pursuant to a Current Report on Form 8-K. The Holder shall remain entitled to convert this Note during the 20-day period commencing on the date of such notice through the effective date of the event triggering such notice except as may otherwise be expressly set forth herein.

Section 6.

Negative Covenants. As long as any portion of this Note remains outstanding, unless the Holders of at least a majority of the outstanding principal of the Notes shall have otherwise given prior written consent, the Company shall not, and shall not permit any of the Subsidiaries to, directly or indirectly:

(a)

other than Permitted Indebtedness, enter into, create, incur, assume, guarantee or suffer to exist any indebtedness for borrowed money of any kind, including, but not limited to, a guarantee, on or with respect to any of its property or assets now owned or hereafter acquired or any interest therein or any income or profits therefrom;

(b)

other than Permitted Liens, enter into, create, incur, assume or suffer to exist any Liens of any kind, on or with respect to any of its property or assets now owned or hereafter acquired or any interest therein or any income or profits therefrom;

(c)

amend its charter documents, including, without limitation, its articles of incorporation and bylaws (except for amendments to the Company's bylaws to reflect the provisions set forth in the Company's Form S-1 Registration Statement filed with the SEC on July 28, 2016), in any manner that materially and adversely affects any rights of the Holder (provided, however, the consent of the Holder shall not be required in connection with an amendment to the Company's articles of incorporation to increase the number of authorized shares of common stock);

(d)

repay, repurchase or offer to repay, repurchase or otherwise acquire more than a de minimis number of shares of its Common Stock or Common Stock Equivalents other than as to the Conversion Shares as permitted or required under the Transaction Documents;

(e)

repay, repurchase or offer to repay, repurchase or otherwise acquire any Indebtedness, other than the Notes if on a pro-rata basis, other than regularly scheduled principal and interest payments as such terms are in effect as of the Original Issue Date, provided that such payments shall not be permitted if, at such time, or after giving effect to such payment, any Event of Default exists or occurs;

(f)

pay cash dividends or distributions on any equity securities of the Company;

(g)

enter into any transaction with any Affiliate of the Company which would be required to be disclosed in any public filing with the SEC assuming that the Company is subject to the Securities Act or the Exchange Act, unless such transaction is made on an arm’s-length basis and expressly approved by a majority of the disinterested directors of the Company (even if less than a quorum otherwise required for board approval);

(h)

issue any equity securities of the Company other than Exempt Issuances and other than pursuant to the provisions of the Purchase Agreement, except for securities sold in the Public Offering (and shares of Common Stock issuable upon exercise of any such securities) and except for other issuances of equity securities as long as the proceeds of any such equity sale are used to prepay this Note as provided in Section 2(e)(iii);

(i)

change its stock transfer agent without providing at least 10 Trading Days prior written notice to the Holder; or

(j)

enter into any agreement with respect to any of the foregoing.

Section 7.

Events of Default.

(a)

“Event of Default” means, wherever used herein, any of the following events (whatever the reason for such event and whether such event shall be voluntary or involuntary or effected by operation of Law or pursuant to any judgment, decree or order of any court, or any order, rule or regulation of any administrative or governmental body):

(i)

any default in the payment of (A) the principal amount of any Note or (B) interest, late fees, liquidated damages and other amounts owing to the Holder or any holder of any note issued at about the same time under identical terms, as and when the same shall become due and payable (whether on a Conversion Date or the Maturity Date or by acceleration or otherwise) which default, solely in the case of an interest payment or other default under clause (B) above, is not cured within three Trading Days (or two Trading Days if Exchange Act Rule 15c6-1(a) is amended by the SEC to provide for settlement within two business days after a trade has been executed), so long as, no later than the Conversion Date, the Holder and the Holder’s broker have provided to the Company or the Company’s transfer agent all customary documents requested by the Company’s transfer agent in connection with the foregoing delivery;

(ii)

the Company shall fail to observe or perform any other covenant or agreement contained in the Notes (other than a breach by the Company of its obligations to deliver shares of Common Stock to the Holder upon conversion, which breach is addressed in clause (xi) below) or any Transaction Document which failure is not cured, if possible to cure, within the earlier to occur of (A) five Trading Days after notice of such failure sent by the Holder or by any other Holder to the Company and (B) 10 Trading Days after the Company has become aware of such failure;

(iii)

a default or event of default (subject to any grace or cure period provided in the applicable agreement, document or instrument) shall occur under (A) any of the Transaction Documents or (B) any other material agreement, lease, document or instrument to which the Company or any Subsidiary is obligated (and not covered by clause (vi) or (xii) below);

(iv)

any representation or warranty made in this Note, any other Transaction Document, any written statement pursuant hereto or thereto or any other report, financial statement or certificate made or delivered to the Holder or any other holder of a similar note shall be untrue or incorrect in any material respect as of the date when made or deemed made;

(v)

the Company or any Significant Subsidiary (as such term is defined in Rule 1-02(w) of Regulation S-X) shall be subject to a Bankruptcy Event;

(vi)

the Company or any Subsidiary shall default on any of its obligations under the Security Agreement, credit agreement or other facility, indenture agreement, factoring agreement or other instrument under which there may be issued, or by which there may be secured or evidenced, any indebtedness for borrowed money or money due under any long term leasing or factoring arrangement that (a) involves an obligation greater than $10,000, whether such indebtedness now exists or shall hereafter be created, and (b) results in such indebtedness becoming or being declared due and payable prior to the date on which it would otherwise become due and payable and such default is not cured within five Trading Days;

(vii)

the Common Stock shall not be eligible for listing or quotation for trading on (1) the principal Trading Market as of the Original Issue Date unless the Common Stock becomes listed on a national securities exchange contemplated by Section 18(b) of the Securities Act (an “Exchange”), or (2) if the Trading Market is an Exchange, on such Exchange and in either case shall not be listed for trading or eligible to be quoted thereon within five Trading Days;

(viii)

the Company shall be a party to any Change of Control Transaction or shall agree to sell or dispose of all or in excess of 50% of its assets in one transaction or a series of related transactions (whether or not such sale would constitute a Change of Control Transaction);

(ix)

from and after the Original Issue Date, the Company fails to have authorized and reserved the amount of shares designated in Section 4.9 of the Purchase Agreement (without regard to any limitations on conversion hereof, including without limitation, the Beneficial Ownership Limitation);

(x)

the Company shall fail for any reason, except if caused by the action or inaction of the Holder to deliver certificates to the Holder prior to the third Trading Day after a Conversion Date pursuant to Section 4(c) or the Company shall provide at any time notice to the Holder, including by way of public announcement, of the Company’s intention to not honor requests for conversions of any Notes in accordance with the terms hereof; or

(xi)

any monetary judgment, writ or similar final process shall be entered against the Company, any Subsidiary or any of their respective property or other assets for more than $5,000, and such judgment, writ or similar final process shall remain unvacated, unbonded or unstayed for a period of 10 calendar days.

(b)

Remedies Upon Event of Default. If any Event of Default occurs, the outstanding principal amount of this Note, plus accrued but unpaid interest, liquidated damages and other amounts owing in respect thereof through the date of acceleration, shall become, at the Holder’s election, immediately due and payable in cash at the Mandatory Default Amount. Upon the payment in full of the Mandatory Default Amount, the Holder shall promptly surrender this Note to or as directed by the Company. In connection with such acceleration described herein, the Holder need not provide, and the Company hereby waives, any presentment, demand, protest or other notice of any kind, and the Holder may immediately and without expiration of any grace period enforce any and all of its rights and remedies hereunder and all other remedies available to it under applicable Law. Such acceleration may be rescinded and annulled by ▇▇▇▇▇▇ at any time prior to payment hereunder and the Holder shall have all rights as a holder of the Note until such time, if any, as the Holder receives full payment pursuant to this Section 7(b). No such rescission or annulment shall affect any subsequent Event of Default or impair any right consequent thereon.

(c)

Intentionally Left Blank.

(d)

Conversion Price Upon Event of Default. Commencing on the occurrence of any Event of Default and until such Event of Default is cured, this Note shall be convertible at the Default Conversion Price.

Section 8.

Miscellaneous.

(a)

No Rights as Stockholder Until Conversion. This Note does not entitle the Holder to any voting rights, dividends or other rights as a stockholder of the Company prior to the conversion hereof other than as explicitly set forth in Section 5.

(b)

Notices. All notices, offers, acceptance and any other acts under this Agreement (except payment) shall be in writing, and shall be sufficiently given if delivered to the addressees in person, by Federal Express or similar receipted next business day delivery, as follows:

If to the Company:

Sigma Labs, Inc.

3900 Paseo del Sol

Santa Fe, NM 87507

Attention: Chief Executive Officer

with a copy to:

TroyGould PC

▇▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇

16th Floor

Los Angeles, CA 90067

Attention: ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇, Esq.

If to Holder:

with a copy to:

▇▇▇▇▇, ▇▇▇▇▇▇, ▇▇▇▇▇▇, ▇▇▇▇▇ & ▇▇▇▇▇, P.A

▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇

Palm Beach Gardens, FL 33410

Attention: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇, Esq.

or to such other address as any of them, by notice to the other may designate from time to time. Time shall be counted to, or from, as the case may be, the date of delivery.

(c)

Absolute Obligation. Except as expressly provided herein, no provision of this Note shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of, liquidated damages and accrued interest and late fees, as applicable, on this Note at the time, place, and rate, and in the coin or currency, herein prescribed. This Note is a direct debt obligation of the Company.

(d)

Lost or Mutilated Note. If this Note shall be mutilated, lost, stolen or destroyed, the Company shall execute and deliver, in exchange and substitution for and upon cancellation of a mutilated Note, or in lieu of or in substitution for a lost, stolen or destroyed Note, a new Note for the principal amount of this Note so mutilated, lost, stolen or destroyed, but only upon receipt of evidence of such loss, theft or destruction of such Note, and of the ownership hereof, reasonably satisfactory to the Company.

(e)

Exclusive Jurisdiction; Governing Law. All questions concerning the construction, validity, enforcement and interpretation of this Note shall be governed by and construed and enforced in accordance with the internal laws of the State of New York, without regard to the principles of conflict of laws thereof. Each party agrees that all legal proceedings concerning the interpretation, enforcement and defense of the transactions contemplated by any of the Transaction Documents (whether brought against a party hereto or its respective Affiliates, directors, officers, shareholders, employees or agents) shall only be commenced in the state and federal courts sitting in New York, New York (the “New York Courts”). Each party hereto hereby irrevocably submits to the exclusive jurisdiction of the New York Courts for the adjudication of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein (including with respect to the enforcement of any of the Transaction Documents), and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of such New York Courts, or such New York Courts are improper or inconvenient venue for such proceeding. Each party hereby irrevocably waives personal service of process and consents to process being served in any such suit, action or proceeding by mailing a copy thereof via registered or certified mail or overnight delivery (with evidence of delivery) to such party at the address in effect for notices to it under this Note and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any other manner permitted by applicable Law. Each party hereto hereby irrevocably waives, to the fullest extent permitted by applicable Law, any and all right to trial by jury in any legal proceeding arising out of or relating to this Note or the transactions contemplated hereby.

(f)

Waiver. Any waiver by the Company or the Holder of a breach of any provision of this Note shall not operate as or be construed to be a waiver of any other breach of such provision or of any breach of any other provision of this Note. The failure of the Company or the Holder to insist upon strict adherence to any term of this Note on one or more occasions shall not be considered a waiver or deprive that party of the right thereafter to insist upon strict adherence to that term or any other term of this Note on any other occasion. Any waiver by the Company or the Holder must be in writing.

(g)

Severability. If any provision of this Note is invalid, illegal or unenforceable, the balance of this Note shall remain in effect, and if any provision is inapplicable to any Person or circumstance, it shall nevertheless remain applicable to all other Persons and circumstances. If it shall be found that any interest or other amount deemed interest due hereunder violates the applicable Law governing usury, the applicable rate of interest due hereunder shall automatically be lowered to equal the maximum rate of interest permitted under applicable Law. The Company covenants (to the extent that it may lawfully do so) that it shall not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury Law or other Law which would prohibit or forgive the Company from paying all or any portion of the principal of or interest on this Note as contemplated herein, wherever enacted, now or at any time hereafter in force, or which may affect the covenants or the performance of this Note, and the Company (to the extent it may lawfully do so) hereby expressly waives all benefits or advantage of any such Law, and covenants that it will not, by resort to any such Law, hinder, delay or impede the execution of any power herein granted to the Holder, but will suffer and permit the execution of every such as though no such Law has been enacted.

(h)

Remedies, Characterizations, Other Obligations, Breaches and Injunctive Relief. The remedies provided in this Note shall be cumulative and in addition to all other remedies available under this Note and any of the other Transaction Documents at Law or in equity (including a decree of specific performance and/or other injunctive relief), and nothing herein shall limit the Holder’s right to pursue actual and consequential damages for any failure by the Company to comply with the terms of this Note. The Company covenants to the Holder that there shall be no characterization concerning this instrument other than as expressly provided herein. Amounts set forth or provided for herein with respect to payments, conversion and the like (and the computation thereof) shall be the amounts to be received by the Holder and shall not, except as expressly provided herein, be subject to any other obligation of the Company (or the performance thereof). The Company acknowledges that a breach by it of its obligations hereunder will cause irreparable harm to the Holder and that the remedy at Law for any such breach would be inadequate. The Company therefore agrees that, in the event of any such breach or threatened breach, the Holder shall be entitled, in addition to all other available remedies, to an injunction restraining any such breach or any such threatened breach, without the necessity of showing economic loss and without any bond or other security being required. The Company shall provide all information and documentation to the Holder that is requested by the Holder to enable the Holder to confirm the Company’s compliance with the terms and conditions of this Note.

(i)

Next Business Day. Whenever any payment or other obligation hereunder shall be due on a day other than a Business Day, such payment shall be made on the next succeeding Business Day.

(j)

Headings. The headings contained herein are for convenience only, do not constitute a part of this Note and shall not be deemed to limit or affect any of the provisions hereof.

(Signature Pages Follow)

IN WITNESS WHEREOF, the Company has caused this Note to be duly executed by a duly authorized officer as of the date first above

Sigma Labs, Inc.

By: ________________________

▇▇▇▇ ▇▇▇▇, Chief Executive Officer

ANNEX A

NOTICE OF CONVERSION

The undersigned hereby elects to convert principal under the 10% Secured Convertible Note due October 17, 2017 of Sigma Labs, Inc., a Nevada corporation (the “Company”), into shares of common stock (the “Common Stock”), of the Company according to the conditions hereof, as of the date written below. If shares of Common Stock are to be issued in the name of a person other than the undersigned, the undersigned will pay all transfer taxes payable with respect thereto and is delivering herewith such certificates and opinions as reasonably requested by the Company in accordance therewith. No fee will be charged to the holder for any conversion, except for such transfer taxes, if any.

By the delivery of this Notice of Conversion the undersigned represents and warrants to the Company that its ownership of the Common Stock does not exceed the amounts specified under Section 4 of this Note, as determined in accordance with Section 13(d) of the Exchange Act.

The undersigned agrees to comply with the prospectus delivery requirements under the applicable securities laws in connection with any transfer of the aforesaid shares of Common Stock.

Conversion calculations:

Date to Effect Conversion:

Principal Amount of Note to be Converted:

Payment of Interest in Common Stock __ yes __ no

If yes, $_____ of Interest Accrued on Account of Conversion at Issue.

Number of shares of Common Stock to be issued:

Signature:

Name:

DWAC Instructions:

Broker No: ______________

Account No: ____________

Schedule 1

CONVERSION SCHEDULE

The 10% Secured Convertible Note due on October 17, 2017 in the original principal amount of $_______ are issued by Sigma Labs, Inc., a Nevada corporation. This Conversion Schedule reflects conversions made under Section 4 of the above referenced Note.

Dated:


Date of Conversion (or for first entry, Original Issue Date)	Amount of Converted Principal	Aggregate Principal Amount Remaining Subsequent to Conversion (or original Principal Amount)	Applicable Conversion Price	Company Attest

FORM OF ORIGINAL ISSUE DISCOUNT 10% SECURED CONVERTIBLE NOTE DUE OCTOBER 17, 2017

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