HID

Similar Terms: hid, HIDs

High-intensity discharge lamps are a type of electrical gas-discharge lamp which produces light by means of an electric arc.

The arc is formed between tungsten electrodes housed inside a translucent or transparent fused quartz/ alumina arc tube, which is filled with both gas and Metal salts. The gas facilitates the arc's initial strike. Once the arc is started, it heats and evaporates the Metal salts forming plasma, which greatly increases the intensity of light produced by the arc and reduces its power consumption.

Many modern vehicles use HID bulbs for the main lighting systems, some applications are now moving from HID bulbs to Laser technology.

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