To distinguish H4 car lamps from others - say, from H1 - is much easier. These lamps are double-stranded, they are used in headlamps. The dipped and main beam threads are cylindrical and arranged along the optical axis. Among the “consumers” of such bulbs we recall, for example, the Volga GAZ 24, GAZ 3102, GAZ 3110, Samara VAZ 2101 -2109, Niva, UAZ, Muscovites from 408 to 2141, and Daewoo Matiz - in general, popularity is assured for a long time. It remains to check whether the owners of these cars will have problems with light …
The purpose of the tests is extremely simple - to determine whether it is possible to use the bulbs we bought in serial headlamps certified with a H4 12 V 60/55 W lamp. Yes or no - that’s all.
To answer the question posed, the experts used the headlight from the G8 and the methodology of UNECE Regulation No. 112. The nuances of the procedure are repeatedly described - we will not repeat. It’s much more interesting to immediately “look back.” But…
