Test voltage. The voltage shall be applied to the terminals of the test sample as follows:
Test voltage. The voltage shall be adjusted so as to supply 90 per cent of the maximum wattage specified in the Regulation for filament lamps (Regulation No. 37). The applied wattage shall in all cases comply with the corresponding value of a filament lamp of 12 V rated voltage, except if the applicant for approval specifies that the headlamp may be used at a different voltage. In the latter case, the test shall be carried out with the filament lamp whose wattage is the highest that can be used.
Test voltage. The voltage shall be adjusted so as to supply a wattage 15 per cent (26 per cent for 24 V types) higher than the rated wattage specified in this Regulation for the type(s) of SB headlamp(s) concerned is (are) obtained.
Test voltage. (a) In case of replaceable filament light source(s) operated directly under vehicle voltage system conditions: The voltage shall be adjusted so as to supply 90 per cent of the maximum wattage specified in Regulation No. 37 for the filament light source(s) used. The applied wattage shall in all cases comply with the corresponding value of a filament light source of 12 V rated voltage, except if the applicant specifies that the test sample may be used at a different voltage. In this case, the test shall be carried out with the filament light source whose wattage is the highest that can be used.
Test voltage. The voltage shall be adjusted so as to supply 90 per cent of the maximum wattage specified for filament lamps category HS1 in Regulation No. 37.
Test voltage. The voltage shall be adjusted so as to supply 90 per cent of the maximum wattage specified in this Regulation for the type(s) of HSB headlamp(s) concerned is (are) obtained.
