You can if they are type approved ie E marked, switched by the main beam circuit through a relay. This limits you to 60W max bulbs and they must be either white or yellow.quick question can you legally wire up roof mounted spots to your high beam ? An running lights on same light bar to he side lights?
You can if they are type approved ie E marked, switched by the main beam circuit through a relay. This limits you to 60W max bulbs and they must be either white or yellow.
They are considered "optional main beam headlights" under the Road Vehicles Lighting Regulations 1989.
You can't use any other fittings or bulbs, 100W bulbs are illegal for road use.