7.1. In the case of a lamp with replaceable light source, when not supplied by an electronic light source control gear, with an uncoloured or coloured standard light source of the category prescribed for the device, supplied with the voltage: a2c0
7.1. All measurements shall be carried out with uncoloured standard filament lamps of the types prescribed for the device, adjusted to produce the reference luminous flux prescribed at 13.2 V for light sources as listed in Regulation No. 37, Annex 1 under the group 1 and at 13.5 V for the light sources as listed in Regulation No. 37, Annex 1 under the group 2, when not supplied by an electronic light source control gear. a0c0