Cree has introduced an LED that can deliver 500 lm from a 2.45×2.54mm package. Called XB-H LED, it scores highest in lm/area amongst the firm’s LEDs, allowing smaller diameter optics to deliver a certain illumination pattern at a given efficiency. Cree dubs lm/area ‘optical control factor’. “XB-H LED brings the lighting-class performance of the XP-G2 LED into a package that is 50% smaller,” said Cree. “Delivering more than 500 lm at 1.5A, 25ºC, it can enable luminaires that use the same size footprint XB-D LED to triple their light output at the same efficacy.
It delivers up to 175 lm/W at 1W, 25°C.” At 25°C, the LED will be emitting more light than it will be once it warms up. - See more at: http://www.electronicsweekly.com/ne...ge-better-beams-2014-03/#sthash.Ib2ySkvv.dpuf
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It delivers up to 175 lm/W at 1W, 25°C.” At 25°C, the LED will be emitting more light than it will be once it warms up. - See more at: http://www.electronicsweekly.com/ne...ge-better-beams-2014-03/#sthash.Ib2ySkvv.dpuf
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