LED light source luminous efficiency of up to 186lm / w
LED bulbs light efficiency is the light emitted from the light source luminous flux divided by the power consumed is the impact on the brightness of the LED lighting is an important factor to improve light efficiency LED industry is always a theme. As technology advances, LED light source luminous efficiency increasing, from 60lm / w to break through to 100lm / w, developed in 2011 to 130lm / w or more, and now they Cree announced the luminous efficiency of up to 186lm / w, standard The optical efficiency technologies the industry has made great progress.
According to the latest news reports: Cree Launches XLamp ® XM-L2 LED, after tests found at 350 mA and 25 ° C under the conditions of high light efficiency 186 lm / W, luminous efficiency is the industry's milestone. XLamp ® XM-L2 LED is XLamp ® XM-L LED subsequent upgrade, but its luminous efficiency is the generation of 120%, then the production of the same power lamps, reducing the number of the light source, then potentially save a lot costs.
It is understood that, in 2009, had announced laboratory Cree won 186lm / w light efficiency, but in practice did not reach such a high figure. Under normal circumstances, such as testing efficiency of light energy to 140lm / w, and the final product may be only light efficiency 100lm / w so, after being power efficiency, the transmittance of the lens, the temperature of the product and other factors. Today Cree's SC3 (SC Cube) third-generation silicon carbide-based production platform, XM series uses the same package size (5 mm x 5 mm) and matching the latest packaging technology, has reached 186lm / w light efficiency to achieve high efficiency and high drive current effective combination.
When a company develops a Cree XLamp ® XM-L2 LED, directly through the UL certification, and was named four, may have applied for a patent to protect his company's latest product results. Cree Cree was founded in 1987, is already a U.S. listed company, the English name Cree, and in China occupy a certain market share, established in Huizhou LED chip manufacturing base. In general, LED chip light efficiency improvements, not just Career advancement, but for the entire LED industry will play a catalytic role in the development. Articles from the "technological progress: LED light source luminous efficiency of up to 186lm / w" published by the LED fluorescent finishing!