Cree LED test suite TEMPO 24 incorporates IES LM-79

May 1, 2012 – BUSINESS WIRE — Cree Inc. (Nasdaq:CREE), light emitting diode (LED) maker and product developer, added TEMPO 24 (Thermal Electrical Mechanical Photometric Optical) tests to its Cree Services for LED luminaires. TEMPO 24 combines the Illuminating Engineering Society’s (IES) LM-79-08 photometric test with nearly a dozen other LED performance tests that exceed industry testing parameters, Cree states.

LM-79 has become a requirement for solid state lighting products, said Mark McClear, director of global applications engineering, Cree. In addition to LM-79, TEMPO 24 testing includes binning and color point evaluation, chemical compatibility, and TM-21 lifetime projection tests to ensure reliability in LED luminaires.

Also see: Luminus Devices accredited to LM-80 test standard and UL authorized for LED testing to Zhaga standards

Cree currently provides TEMPO Services out of its Durham, NC and Santa Barbara, CA centers. The Cree Durham Technology Center has been accredited by The National Voluntary Laboratory Accreditation Program (NVLAP), which ensures that TEMPO measurements are performed according to IES-approved methods for the electrical and photometric measurements of LED lighting. NVLAP accreditation signifies that a laboratory operates in accordance with NVLAP management and technical requirements pertaining to quality systems, personnel, accommodation and environment, test and calibration methods, equipment, measurement tractability, sampling, handling of tests and calibration items, and test and calibration reports.

Cree laboratories also work to American National Standards Institute (ANSI) and National Institute of Standards and Technology (NIST) requirements.

Cree develops and produces lighting-class LEDs, LED lighting, and semiconductor products for power and radio frequency (RF) applications. Learn more at

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