Cree Adds High Efficacy Model to HT-E Family

Durham, North Carolina-based Cree, Inc. has added a high efficacy version to its XLamp XT-E family. The XT-E high efficacy (HE) leverages key elements of Cree’s SC5 Technology™ Platform, and provides a 25 percent improvement in efficacy compared to the previous XT-E LED. The HE version delivers a guaranteed minimum efficacy of 164 LPW at 85°C and 350mA. According to Cree, these efficacy increases make it possible to design a luminaire that has an efficacy of 130 LPW or higher at the system level under real operating conditions.

The same form factor as other XT LEDs enables existing Cree customers to quickly upgrade a lighting system to improve performance in applications, such as outdoor and industrial lighting. Cree asserts that the XT-E HE also helps LED lighting developers create high-performance luminaires while achieving the lowest total cost.

“We are committed to building the most energy-efficient industrial lighting systems and the newly improved High Efficacy XT-E LED enables us to do that without any additional investment or requalification,” said Colin Piepgras, vice president of engineering at Digital Lumens. “With the new XT-E LED, we are able to leverage existing optical, mechanical and electrical design elements to quickly improve our portfolio of intelligent lighting solutions.”

Cree says that the XT-E HE improves the brightness, optical performance, and voltage characteristics and of the proven 3.45mm x 3.45 mm XT package. The XT-E LEDsD now have more than 10,000 hours of real time LM-80 data available.
Even with temperatures as high as 105 degrees C at 1 A, the XT-E delivers L90 lifetimes of greater than 60,000 hrs. This incredible reliability is ideal for applications such as outdoor and high bay lighting where long lifetimes at high ambient temperatures are essential. Cree notes that XT-E’s improved efficacy and reliability can make luminaires made with it meet the recently updated Design Lights Consortium 4.0 requirements.

“Our customers rely on Cree for innovations that allow them to upgrade their existing products to both gain a competitive edge and meet increasing industry requirements,” said Dave Emerson, vice president and general manager for Cree LEDs. “Cree’s improved XT-E LED provides an immediate solution that eliminates the time and cost of redesign around other unproven alternatives.”
Cree will release product samples at the end of the month and will make production quantities available with standard lead times.

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