Learn more about R&D chemical mechanical polishing by requesting our FREE informational CD.

Download our CMP White Paper

Class One Equipment


FREE subscription
Subscribe for free to receive each issue of Semiconductor Today magazine and weekly news brief.


10 September 2007


Cree achieves 1000 lumens from single-die LED

Cree Inc of Durham, NC, USA has demonstrated light output from a single-die R&D LED, driven at 4 Amps, of 1050 lumens in cool white (equivalent to the output level of a standard household light bulb) and 760 lumens in a warm-white version.

Luminous efficacies are 72 lumens per watt for the cool-white LED and 52 lumens per watt for the warm-white LED (both substantially higher than those of conventional light bulbs).

Cree says that, historically, its R&D demonstrations have generally been commercialized within 12-24 months. “Cree’s XLamp LEDs are the best-performing commercially available LEDs,” claims co-founder and director of advanced optoelectronics John Edmond. “But we won’t be satisfied until light bulbs are obsolete,” he adds. “We’ve worked 20 years to achieve lighting-class LED performance, and we still have plenty of ways to advance the technology further.”

See related items:

Lumileds boosts Luxeon Rebel LED to 100lm

Osram sampling 1000lm OSTAR LED for general lighting