Lumen Output: April 2008 Archives
In September 2007, Cree Inc, announced it had demonstrated light output of more than 1,000 lumens - an amount equivalent to the output level of a standard household light bulb - from a single R&D LED.
Cree’s achievement demonstrates continued leadership in the development of LEDs that can make traditional light bulbs obsolete.
A single-die LED, driven at four amps, produced 1,050 lumens in cool white and 760 lumens in a warm-white version. Efficacy of the cool-white LED was 72 lumens per watt and 52 lumens per watt from the warm-white device. Both LED versions operated at substantially higher efficacy levels than those of today’s conventional light bulbs. Historically, Cree’s R&D demonstrations generally have been commercialized within 12 to 24 months.
“Cree’s XLamp® LEDs are the best-performing commercially available LEDs, but we won’t be satisfied until light bulbs are obsolete,” comments John Edmond, Cree co-founder and director of advanced optoelectronics. “We’ve worked 20 years to achieve lighting-class LED performance, and we still have plenty of ways to advance the technology further.”
For more information on Cree power LEDs, please call (919) 313-5300 or visit www.cree.com.
MARCH 3, 2008 — Cree, Inc. (Nasdaq: CREE), a market leader in LED
solid-state lighting, today announced that it has completed the
acquisition of privately held LED Lighting Fixtures, Inc.
This acquisition expands Cree’s market opportunity by providing direct access to the lighting market. Cree's business now encompasses LED chips, components and lighting solutions. It further enables Cree to drive retrofit solutions to convert existing lighting infrastructure to energy-efficient lighting and to accelerate the adoption of LED lighting.
“We are out to lead the LED lighting revolution and to obsolete the lightbulb,” said Chuck Swoboda, chairman and chief executive officer of Cree.
Cree is a market-leading innovator of lighting-class LEDs, LED lighting retrofit solutions, and semiconductor solutions for backlighting, wireless and power applications.
CONTACT: http://www.cree.com
This acquisition expands Cree’s market opportunity by providing direct access to the lighting market. Cree's business now encompasses LED chips, components and lighting solutions. It further enables Cree to drive retrofit solutions to convert existing lighting infrastructure to energy-efficient lighting and to accelerate the adoption of LED lighting.
“We are out to lead the LED lighting revolution and to obsolete the lightbulb,” said Chuck Swoboda, chairman and chief executive officer of Cree.
Cree is a market-leading innovator of lighting-class LEDs, LED lighting retrofit solutions, and semiconductor solutions for backlighting, wireless and power applications.
CONTACT: http://www.cree.com
“To replace traditional light sources, LEDs need to
provide both high light output and high efficacy,” comments John
Edmond, Cree co-founder and director of advanced optoelectronics. “Cree
continues to push the limits of LED performance in order to realize the
potential of the LED lighting revolution - energy-efficient,
long-lasting LED light.”
These are the best results reported for packaged, high-power LEDs, and indicate that Cree is extending its lead in solid-state lighting through its continued investments in LED technology.
The results have been verified by the National Institute of Standards and Technology (NIST). NIST’s tests confirmed that the cool-white (5,813 K) LED produced 135.7 lumens of light output and achieved 129 lumens per watt efficacy. The warm-white (2,950 K) LED produced 104.2 lumens of light output and achieved 99 lumens per watt efficacy. The institute tests LEDs at 350 mA and measures the output after five minutes of operation to ensure thermal stabilization.
In coming years, such investments in core LED technology could lead to products that replace traditional light sources in all commercial applications.
For more information on Cree high-power LEDs, please call (919) 313-5300 or visit www.cree.com.
In September, 2007, Cree announced it achieved R&D results of 129 lumens per watt for a cool-white LED and 99 lumens per watt for a warm-white LED.
These are the best results reported for packaged, high-power LEDs, and indicate that Cree is extending its lead in solid-state lighting through its continued investments in LED technology.
The results have been verified by the National Institute of Standards and Technology (NIST). NIST’s tests confirmed that the cool-white (5,813 K) LED produced 135.7 lumens of light output and achieved 129 lumens per watt efficacy. The warm-white (2,950 K) LED produced 104.2 lumens of light output and achieved 99 lumens per watt efficacy. The institute tests LEDs at 350 mA and measures the output after five minutes of operation to ensure thermal stabilization.
In coming years, such investments in core LED technology could lead to products that replace traditional light sources in all commercial applications.
Customers may see these technology advancements in commercial products
within 12 to 24 months.
For more information on Cree high-power LEDs, please call (919) 313-5300 or visit www.cree.com.
