Lights of your life.

Position:Light emitting diodes headlights - Brief article

The time is close at hand when you might never again have to change the bulbs in your car's lights. The Audi R8 and Toyota's Lexus have presented LED headlights that will last for the car's lifetime. LEDs (light-emitting diodes) are better, the manufacturers say, than other more conventional bulbs because the light is more intense, more energy-efficient and lights up 10 times faster than its competitors.

Wheeled out at the recent Paris car show, they caused a sensation because most motor car analysts had not expected to see them for another three years. So why have they taken so long to develop? A major problem to be overcome was overheating of the...

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