GOST R 41.20-1999 Uniform provisions concerning the approval of motor vehicle headlamps emitting an asymmetrical passing beam or a driving beam or both and equipped with halogen filament lamps (H4 lamps)
These regulations apply to motor vehicle headlights which may have lenses made of glass or plastic.
GOST R 41.20-1999 history
1999GOST R 41.20-1999 Uniform provisions concerning the approval of motor vehicle headlamps emitting an asymmetrical passing beam or a driving beam or both and equipped with halogen filament lamps (H4 lamps)