The type of headlamp will determine whether the aim must be checked on dipped or main beam (see Diagrams 1, 2 and 3).Ī flat top or other alternative headlamp dipped beam pattern is acceptable as long as all of the beam upper edge, including any ‘peak’ is contained within the appropriate tolerance band. You must inspect all dipped beam headlamps fitted. (ii) missing, inoperative or more than ½ not functioning in the case of LED (i) with up to ½ light sources not functioning in the case of LED Tricycles and quadricycles classed as mopeds do not need a main beam headlamp.Ī ‘light source’ means any bulb, LED or other means of emitting light.
The following must have a pair of main beam headlamps and a pair of dipped beam headlamps – can be separate or a single pair of headlamps: mounted symmetrically - if there’s 2 lamps.mounted symmetrically about the centre - if they’re adjacent to another lamp, such as there’s one dipped beam lamp and one main beam lamp.mounted centrally - if there’s only one lamp.Tricycle and quadricycle headlamps must be: You must assess damaged or repaired lamps for security, colour, light output and durability. If 2 are fitted, neither the main beam or dipped beams need to be a matched pair. Vehicles first used before 1 January 1931 do not need headlamps.īuses first used before 1 October 1969 only need one headlamp. not used at times of seriously reduced visibility.You do not need to test headlamps on vehicles that are not fitted with position lamps, or have such lamps permanently disconnected, painted over or masked, that are:
are the same size and shape that they are symmetrical to each other.emit light of substantially the same colour and intensity.These can be separate or a single pair of headlamps. ‘Mandatory headlamps’ are a matched pair of main beam headlamps and a matched pair of dipped-beam headlamps.
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