Hot-tested LEDs suit illumination applications

Luxeon A shares the Luxeon Rebel ES platform and footprint and incorporates a 2mm2 thin-film flip chip and Lumiramic phosphor technology to deliver the highest quality of light at 2,700K and 3,000K with very high efficacy and light output.

All Luxeon A LEDs are hot tested and specified at a junction temperature of 85C that represents real-world operating conditions.

Lumileds' chip and phosphor technology allows colour targeting that ensures all Luxeon A emitters fall within a single three-step MacAdam ellipse on the black body curve.

According to Philips Lumileds, the quality, uniformity and consistency of the light from LED to LED relieves luminaire manufacturers and lighting designers of concerns about the suitability of LED technology for illumination applications.

The company also claims that Freedom From Binning gives the industry great confidence in quality of light and that Lumileds' hot testing pays dividends for the engineers that design LED solutions.

The LED industry has long tested and specified products at an LED chip junction temperature of 25C.

However, in applications such as down lights and retrofit lamps, LED junction temperatures are more likely to be near 85C.

This has meant that luminaire manufacturers have had to make many complex calculations to determine actual light output, efficacy and colour point of their products.

Lumileds' hot testing simplifies the entire process by providing the actual operating condition information so that there's no ambiguity, performance hyperbole or wasted engineering effort.

Luxeon A is available for sampling and will go into high-volume production in early May 2011.