This Standard specifies the test methods and inspection rules for the photometric characteristics, light colours and temperature cycling of motor vehicle headlamps equipped with LED light source(s)/module(s) or headlamps containing LED light source(s)/modules.
This Standard applies to LED headlamps of type M and N motor vehicles, or LED headlamps emitting passing beams or driving beams by LED light source(s) or LED module(s).
2 Normative References
The provisions of the following documents become provisions of this Standard after being referenced. For dated reference documents, all later amendments (excluding corrigenda) and versions do not apply to this Standard; however, the parties to the agreement are encouraged to study whether the latest versions of these documents are applicable. For undated reference documents, the latest versions apply to this Standard.
GB 4599-2007 Motor vehicle headlamps equipped with filament lamps
GB 4785 Prescription for installation of external lighting and light signalling devices for motor vehicles and their trailers
GB/T 7922 Methods of measuring the colour of light sources
GB 15766.1 Lamps for road vehicles – Dimensional electrical and luminous requirements
