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Cree reveals 170 lumens per watt LED bulb

The US semiconductor manufacturer says breakthrough innovations have optimised performance and driven costs down.

Cree has unveiled a 170L/W prototype LED light bulb, less than a year after showcasing the 152L/W concept LED bulb. The innovations behind the high-performance 170L/W LED bulb are enabling significantly higher efficacy and lower costs, says Cree. And as the company also points out, the latest development demonstrates the its commitment to accelerate the adoption of LED lighting by addressing initial cost and payback, key barriers to widespread LED lighting adoption. The LEDs are based on Cree's so-called SC³ Technology Platform, including silicon carbide technology and feature advancements in the LED chip architecture and phosphor. “Optimising each LED design element was critical in achieving the performance reached by Cree’s new prototype LED bulb,” said Nick Medendorp, vice president of research and development, Cree lighting. “The technology embodied in the new 170L/W concept LED bulb is enabling us to develop higher-performance and lower-cost Cree LED luminaires. By pushing the limits of what is possible, Cree continues to strive to develop new technology that uses less energy and provides unmatched light quality and value to our customers,” he added. Third party testing by independent lab OnSpeX confirmed that the new 170L/W prototype LED bulb delivered more than 1250 lumens and consumes only 7.3W. The bulb uses Cree TrueWhite Technology to deliver a CRI of 90+. As an efficiency comparison, a traditional 75W incandescent light bulb produces 1100 lumens, which is only 14.6L/W.

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