Projector headlights can use a basic objective lens whose only purpose is to equally disperse the pre-shaped beam, as the shutter regulates the beam’s shape. The shutter is lowered when the driver selects a high beam, allowing the headlight to shine without obstruction. ![]() All the light from the bulb is directed toward a single point in front of the elliptical reflector, where a shutter meets it.Ī projector headlight has a shutter that protrudes upward from the bottom, partially obstructing the beam so that it shines downward toward the road.Īdditionally, the top of the shutter is tapered, which lowers the beam on the left (or right, in nations where traffic is driven on the left) and lessens light that is shone into the path of oncoming vehicles. Unlike traditional parabolic reflectors, the projector headlight’s single bulb is positioned in front of an elliptical one. However, halogen and, more recently, LED systems are also available. Most projector headlights use HID Xenon bulbs. Additionally, they are more effective than reflector headlights because they cast a narrower beam of light forward, where it is needed, and less out to the sides, where it isn’t.Ī projector headlight utilizes a single bulb in place of the two bulbs used in a traditional dual-beam design (one for a high beam and one for a low beam). Projector headlights have a different design than traditional reflector headlights, which allows them to illuminate more of the road surface at an even further distance. They can use high-intensity discharge (HID) and light-emitting diode (LED) bulbs that are too intense to be used in traditional reflector headlights. Projector headlights, called poly ellipsoidal and bi-xenon headlights, are high-performance headlights typically found in high-end luxury and sports automobiles but are also available as aftermarket improvements. Retrofitting a Projector Into a Reflector Housing ![]() ![]() Installing Projector Headlight- Projector Retrofitting.
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