Part II Rrequirements relating to optional stop lampsI1

those specified in paragraphs 1, 2 and 3; and

in the case of a stop lamp fitted to a pedal cycle, those specified in paragraphs 5 and 8; and

in the case of a stop lamp fitted to a motor vehicle not being a motor bicycle, first used on or after 1st April 1991 either centrally or in such a manner as to project light through the rear window the intensity of the light emitted to the rear of the vehicle shall be not less than 20 candelas and not more than 60 candelas when measured from directly behind the centre of the lamp in a direction parallel to the longitudinal axis of the vehicle.