Daytime running light

A daytime running light is an automotive lighting and bicycle lighting device on the front of a road motor vehicle or bicycle, They come on when the vehicles handbrake has been pulled down or when the vehicle is put in-gear, they show a white, yellow, or amber light. They help other road users identify an active vehicle.Daytime running light European Commission

References

Other websites
 Headlights overview Insurance Institute for Highway Safety (IIHS)

Category:Auto parts
Category:Automotive technologies
Category:Light sources