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LEDs Spearhead Drive Toward Intelligent Headlamps

Traditionally, the most common light source for headlamps has been the halogen filament lamp. Its key advantage is its low cost, and it is considered to represent a technically robust solution. The fact that it is replaceable makes up for the disadvantage of a limited service life. It does, however, have relatively high energy consumption and low efficiency at an average of 26 lumens per watt (L/W); and because of the light being radiated in all directions, halogen filament lamps offer poorer illumination performance overall compared to the alternatives.

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