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Xenon Headlights

Xenon headlights offer significant advantages compared to conventional halogen lights. With a light spectrum similar to daylight, they make night driving less tiring for the driver’s eyes and therefore safer. They are notable for their excellent range and very good lateral spread. Further advantages are low energy consumption and durability superior to that of conventional halogen lights.
The source of light is a gas-discharge lamp.
An arc-over between two electrodes in the xenon-gas atmosphere in the lamp bulbs results in an ionised gas tube through which electric current flows. This causes the gaseous mixture to glow in the form of an electric arc. A sophisticated electronics system is needed to operate these bulbs in order to generate the high ignition voltage of between 18,000 and 30,000 volts and to guarantee automatic reignition and constant operation (at an output of just 35 watts).