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What is the focusing adjustment method for xenon headlights?

1 Answers

Crystal

07/24/25 8:01pm

Xenon headlights are adjusted for focus by: removing the screws of the xenon headlight assembly, then removing the bulb clip, turning on the light and moving the bulb upwards, observing the focal point against a wall—the focal point should be slightly above the cut-off line. The light emitted by xenon headlights is concentrated and directed forward, evenly spreading across the road surface to ensure sufficient brightness for forward visibility. Xenon headlights, also known as high-intensity discharge (HID) lamps, are a type of heavy metal lamp. They work by filling an ultraviolet-resistant quartz glass tube with various chemical gases, including xenon and other inert gases, and then using a booster to instantly increase the vehicle's 12-volt power supply to 23,000 volts. Under this high voltage, xenon gas is ionized, creating a light source between the two electrodes.

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