Best Bulbs For Projector Headlights. Best Overall Bulbs for Projector Headlights. 23 Marsauto D3S Best design.
Halogen bulbs offer long forward seeing distance for the driver to react to an object in the road and to stop in time. Usually most projector headlights use HID xenon bulbs and halogen but nowadays LED setups are available. But the inner structure of xenon projector is designed according to the focal length of the HID bulb.
LED bulbs work well in projector headlights because of the features built into it.
There is a single bulb in a projector headlights in front of an elliptical-shaped reflector which opposed to the classic parabolic-shaped reflector eg lights are reflected towards a single focal point in front of the bulb where it meets a shutter. Projector headlights give off a more even light. Reflector headlights can have darker spots. Usually most projector headlights use HID xenon bulbs and halogen but nowadays LED setups are available.