LEDs are a brighter, more efficient alternative to HID and halogen bulbs in vehicle headlights. ... But LED bulbs can only be used in projector headlights and continue to be unsafe to use in reflector headlights. Vehicle headlights have certainly come a long way since traditional tungsten filament lamps.

What type of bulbs do projector headlights use?

Bulb: Every headlight needs a bulb, and projector headlights can use halogen, HID, and LED bulbs as the light source. The bulbs in projector headlights can be much brighter than the bulbs in reflector headlights.

What is the difference between LED headlights and projector headlights?

Projector Headlight Housing. The main difference between reflector and projector headlights is that projectors have lenses that better focus the light as illustrated below. Reflectors will cover a wider angle but the light will be less intense and focused, commonly referred to as having more light 'waste'.