Jingdian developed the world's highest luminous efficiency 216lm/W warm white high voltage chip combination

Recently, Epistar Optoelectronics Research and Development Center (EPISTAR LAB) published the highest warm white efficiency chip combination. EPISTAR LAB successfully developed the latest red and blue high voltage chip combination. Under 5mA operation, its color temperature is 2700K, color rendering is 87, and its illumination The efficiency is up to 216lm/W. When operating at 15 mA, the luminous efficiency is also 197 lm/W.

The world record achieved by EPISTAR LAB uses a variety of cutting-edge technologies for this high-voltage chip combination, such as transparent substrate conversion process, design to reduce quantum well light absorption, fine structure of photon extraction rate, and uniformity of current distribution. A quantum well structure with high quantum efficiency and low impedance.


The combination of red and blue chips with excellent luminous efficiency, high color rendering and competitive price/performance ratio has a place in the warm white light application market. This red-blue chip combines in a warm white gamut to provide excellent luminous efficiency and is suitable for applications such as replacement bulbs, commercial lighting, and lamps. EPISTAR will continue to develop more advanced chip technologies and work closely with customers to provide better lighting solutions in the market.

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