LUXEON Reb EL Cooling and heating coefficient improves solid-state lighting efficiency and simplifies heat dissipation design
ENERGY STAR application requirements are more easily met with improved chip and package technology
Philips Lumi LEDs continue to enhance their core LED technology, and the breakthrough technology recently introduced in the latest LUXEON Rebel LEDs improves the performance and lighting output performance of the lighting unit. The coefficient of thermal and thermal insulation (ie, the ratio of the LED output at 100 ° C junction temperature and 25 ° C junction temperature) is the specification value in the LED data sheet. The LEDs in the luminaire operate at very high junction temperatures, typically between 80 ° C and 110 ° C. As the temperature rises, the light output and energy efficiency decrease. The LUXEON Rebel LED, just released, has a thermal coefficient of .93 that provides higher light output and performance than almost any other power LED. When the junction temperature is 100 ° C, the typical coefficient of thermal coefficient is .80 - .85. It is critical that companies improve this factor as much as possible when designing ENERGY STAR-compliant solid-state lighting solutions.
Rudi Hechfellner, Head of Technical Solutions, said: “The coefficient of thermal and thermal resistance is one of the obvious differences between LEDs. The high thermal coefficient helps simplify the design of the thermal system and reduces the cost per lumen in the final application.â€
A list of all LUXEON Rebel LEDs can be obtained from the spec sheet published at
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