Products, Materials + Tools | Feb 07, 2012

Cree Continues to Accelerate Price-Performance Optimization with the New XT-E LED

Cree, Inc. today announced a breakthrough in LED technology that completely redefines the lighting industry and erases old assumptions about up-front LED cost and performance. The Cree XLamp® XT-E White LED delivers twice the lumens-per-dollar of other LEDs and features the highest performance and efficacy in the industry. Based on a new silicon carbide technology platform, the XT-E LED and the recently released XB-D LED represent a dramatic transformation in LED price-performance. Cree’s revolutionary new platform addresses the largest obstacle to mass LED lighting adoption, initial cost, and enables LED lighting systems to replace their inefficient ancestors.

“Cree has a history of delivering excellent LED solutions and the XLamp XT-E LED has exceeded our expectations,” said Fritz Morgan, chief product officer, Digital Lumens, Inc. “We are committed to building the most energy-efficient industrial lighting systems and the XT-E LED enables us to do just that with high lumens per watt. The result is an intelligent LED-based lighting system that is driving widespread adoption of LEDs in industrial facilities, with compelling performance and end-user payback.”

“Our mission is to drive the LED lighting revolution through our relentless pursuit of innovation and by helping manufacturers bring high-quality, affordable LED lighting to market,” said Mike Watson, Cree senior director marketing, LED components. “With the XB-D LED, Cree changed the game and introduced a better price-performance curve. Now, with the XT-E LED, Cree continues to break barriers and extend its leadership on this new trajectory, delivering products that accelerate LED adoption.”

Paul Scheidt, Product Marketing Manager at Cree, explained exclusively to LED professional: "The new XT-E LEDs are based on the XT-E royal blue LED, introduced in August 2011, which is basically an improved XP-E design. This is a great advantage for our customers. Since the XT-E White LED is a successor product to XP-E High Efficiency LED, the application for ENERGY STAR® qualification requires only 3000 hours of XT–E LED LM-80 data, instead of the normal 6000 hours."

"To achieve that enormous progress in price-performance numerous technological steps were combined, starting with an advanced chip structure to phosphor optimization as well as adaptations of the thermal path using a new package design and the primary optics with a new dome geometry." Mr. Scheidt commented the relevant technological advances. " As a result," he continued, "the XT-E can be driven harder than its predecessor, with up to 1.5A, has a lower thermal resistance, an increased light conversion efficiency and an optimized outcoupling characteristics."

The XT-E LED more than doubles the lumens per watt of the XLamp XP-E LED family – providing up to 148 LPW at 85°C (or up to162 LPW at 25°C) at 350mA. The XT-E LED delivers exceptional performance in the popular 3.45mm x 3.45mm XP footprint and can be used for almost all lighting applications. By leveraging the XP footprint, customers can easily incorporate the XT-E LED in existing XP LED designs to shorten the LED fixture design cycle and improve customer time-to-market.

The XT-E White LED delivers up to 148 lumens and 148 lumens per watt in cool white (6000 K) or up to 114 lumens and 114 lumens per watt in warm white (3000 K), both at 350 mA, 85°C.

For more information on how Cree is accelerating LED lighting adoption, and to request a free sample, visit
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About Cree:
Cree is leading the LED lighting revolution and making energy-wasting traditional lighting technologies obsolete through the use of energy-efficient, mercury-free LED lighting. Cree is a market-leading innovator of lighting-class LEDs, LED lighting, and semiconductor products for power and radio frequency (RF) applications.
Cree’s product families include LED fixtures and bulbs, blue and green LED chips, high-brightness LEDs, lighting-class power LEDs, power-switching devices and RF devices. Cree products are driving improvements in applications such as general illumination, backlighting, electronic signs and signals, power suppliers and solar inverters.
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