Test procedure 1. 2.1.1.1. The device shall be operated for a period according to the specified time, so that: (a) In the case where a device is designed to provide only one lighting function (driving beam or passing beam or front fog lamp) and not more than one class in case of passing beam, the corresponding light source(s) is/are lit for the time,2 specified in paragraph 2.1.; (b) In the case where a device is designed to provide a passing-beam and one or more driving-beams or in the case of a headlamp with a passing- beam and a front fog lamp: (i) The device shall be subjected to the following cycle until the time specified is reached as follows: 1 For the test schedule see Annex 7, Appendix 1. 2 When the tested headlamp includes signaling lamps, the latter shall be lit for the duration of the test, except for a daytime running lamp. In the case of a direction indicator lamp, it shall be lit in flashing mode with an on/ off time of approximately one to one. (ii) If the applicant declares that the headlamp is to be used with only the passing-beam lit or only the driving-beam(s) lit3 at a time, the test shall be carried out in accordance with this condition, activating1 successively the passing-beam half of the time and the driving-beam(s) (simultaneously) for half the time specified in paragraph 2.1. (iii) In the case of a passing beam and a driving beam provided by the same gas-discharge light source, the cycle will be: (c) In case of an AFS, (i) Where a test sample provides more than one function or class of passing beam according to this Regulation: if the applicant declares that each specified function or class of passing beam of the test sample has its own light source(s), being exclusively lit2 at a time, the test shall be carried out in accordance with this condition, activating1 the most power consuming mode of each specified function or class of passing beam successively for the same (equally divided) part of the time specified in paragraph 2.1. (ii) In all other cases, 1, 2 the test sample shall be subjected to the following cycle test for each, the mode(s) of class C passing beam, the class V passing beam, the class E passing beam and the class W passing beam, whatever is provided or partly provided by the test sample, for the same (equally divided) part of the time specified in paragraph 2.1.: - 5 minutes, same passing beam mode lit as before and, additionally, all light sources4 of the test sample, which are possible to be lit at the same time, according to the applicant's declaration; after having reached the said (equally divided) part of the time specified in paragraph 2.1., the above test cycle shall be performed with the second, third and fourth class of passing beam, if applicable, in the above order. (d) In the case of a headlamp with a front fog lamp and one or more driving- beams: (i) The headlamp shall be subjected to the following cycle until the time specified is reached:
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Sources: Agreement Concerning the Adoption of Harmonized Technical United Nations Regulations for Wheeled Vehicles, Agreement Concerning the Adoption of Harmonized Technical United Nations Regulations for Wheeled Vehicles