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Epistar Develops High-Voltage LED Chip for White Light Applications

Editorial Checklist

Reviewed

Sep 3 2010

The Taiwan-based Epistar announced that it has developed a new HV (High-Voltage) LED chip, which allows a white LED to achieve 135 lm/W efficacy at 1W operation. The technology is ideal to achieve high efficiency with a large size blue LED chip, avoiding the necessity for a complex packaging of small chips with wires.

Epistar’s technology allows a white LED to offer a maximum efficacy of 135 lm/W, at 5000 K color temperature. The company has developed a High-Voltage DC multiple-chip array, which is monolithically integrated, for achieving high efficacy and enhancing the current spreading.

The HV LED chip offers higher Wall Plug Efficiency and lower forward voltage than a standard power chip, at 5.5W operation. These High-Voltage LED chips are suitable for high-efficacy white light applications and general lighting applications.

Source:

http://www.epistar.com.tw/

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