Lasers, projectors, LEDs. No, this isn’t some party planner's material list, but the headlight technology that has been advancing at a rapid rate and is finding place on our cars. And, it's getting more and more difficult to cut through the jargon; LEDs, halogens, projectors, xenons. So, what do they mean? What are halogens? A halogen bulb is similar to an electric bulb found in any household. But while your regular bulb has a filament (small wire) that heats up and emits light, the halogen lamp uses halogen gas to increase brightness. These bulbs aren’t very efficient, as most of the energy is wasted in heat instead of light. Halogen bulbs used in automobiles typically emit a yellowish light and despite the technology being over 50 years old, it is widely used. In terms of brightness, halogen lamps have a throw of about 100 metres. What are xenon headlights? Also referred to as HID (high-intensity discharge), xenon lamps are similar to the ubiquitous tube light. There is...
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