White LEDs to Appear in Audi Headlights
Daniel S. Burgess
Audi AG of Ingolstadt, Germany, will feature Luxeon white LEDs from Lumileds Lighting LLC of San Jose, Calif., in the headlights of its new luxury sedan, the 450-horsepower, 12-cylinder A8 L 6.0 quattro. The automobile manufacturer notes that using solid-state emitters for daytime running lights offers more than a distinctive design feature.
Daytime running lights are required in many countries as a safety measure, and their use is being mandated in more of them. Standard lights, however, are energy-hungry, increasing fuel consumption. In contrast, the efficiency of LEDs means that the five-point headlight from Lumileds has virtually no effect on the fuel consumption of the vehicle.
LEDs have seen use in rear-end car lighting, but their output has been insufficient for headlights. Lumileds hopes that the selection of its white LEDs is indicative of a coming trend that will result in a move to efficient solid-state light sources for all vehicle illumination needs.
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