3 March 2011

Cree extends XM-L LED range from cool white, claiming record-efficacy warm- & neutral-white lighting-class LEDs

LED chip, lamp and lighting fixture maker Cree Inc of Durham, NC, USA has announced the commercial availability of XLamp XM-L LEDs in neutral- and warm-white correlated color temperatures (2600–5000K CCT), extending the XM-L family to a wide range of mainstream indoor and outdoor lighting applications. Cree previously launched cool-white (6500K) XM-L LEDs last November.

Light output and luminous efficacy, respectively, are up to 113 lumens and 117 lumens per watt for warm-white (3000K) XM-L LEDs and up to 134 lumens and 138 lumens per watt for neutral-white (4000K) XM-L LEDs at a drive current of 350mA, and up to 220 lumens and 108 lumens per watt for warm-white (3000K) XM-L LEDs and up to 260 lumens and 128 lumens per watt for neutral-white (4000K) XM-L LEDs, at a drive current of 700mA. Driven at 3.0A, XM-L neutral-white LEDs produce 850 lumens at 84 lumens per watt.

Unlike competing LED solutions that use large-footprint packages and diffuse optical sources to deliver hundreds of lumens, XM-L LEDs provide breakthrough performance in a compact footprint and small optical source size, claims Cree. This high lumen density can simplify designs and reduce costs for lighting manufacturers building products for directional-lighting applications, such as high-bay, parking, roadway, track, spot and LED replacement lamps, says the firm. XM-L LEDs enable manufacturers to easily control the light output and place light exactly where it is required, minimizing wasted light and light trespass, it adds.

“Cree is the only LED manufacturer currently delivering production volumes of warm- and neutral-white LEDs at these performance levels,” claims Paul Thieken, Cree’s director of marketing, LED Components.

Tags: Cree Cool white LEDs Warm white LEDs Neutral white LEDs

Visit: www.cree.com

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