Halogen bulbs are rapidly being replaced by brighter and whiter light-emitting diodes and even brighter high-intensity-discharge lights filled with xenon gas.
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Battle of the Headlights: Halogen vs. Xenon vs. LED vs. Laser vs
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What is different between the auto LED lights and xenon lamp? Which is
HID vs LED vs Halogen Headlights in Projector Housings