U.S. LED industry status and market forecast

Held in San Diego, California in the United States "2011 LEDs conference", the U.S. Department of energy (DOE) lighting program director Jim Brodrick as the first spokesman for the US LED industry status and market forecast report, Jim Brodrick introduces solid-state lighting in the report (SSL) technical shortcomings of successful technology and the limit of LED used in other applications.

Brodrick first introduced the Department of energy to focus on SSL and LED lighting technology investment, quoted in the energy department report released earlier this year, Brodrick said, if the 7 kinds of traditional lighting applications all replaced by LED lighting, may be the annual energy saving 233 megawatt hours (TWh) of the power - enough to support electricity nineteen million family.

Brodrick in the middle of the report describes the situation in the United States SSL industry, when it comes to LED lighting products, he said: if you start from a white paper and design products that really good. He added that good design must address all aspects of a fixture, including LED chips, optics, electronics, thermal management and mechanical design.

Brodrick said the lights lighting and lighting slot frozen LED used in embedded downlight lighting, outdoor area lighting, 2x2 feet are very perfect, but the application of LED replacement lamps and Cove lighting in small, containing only a modified lamp bulb line performance is not so ideal. But. Straight line 4 feet LED lamp has been gradually improved, close to the efficiency of the fluorescent lamp, but the directional light output and distribution of LED is still not as good as the fluorescent light into the whole cylinder.

Nevertheless, Brodrick said, because of the light output and cost advantages of LED lamps will be in some applications, such as those difficult to apply to the place where the longer life of LED lamps. He also said that the LED lamp on the vibration and climate extremes often occur in the region is still a good choice. For example, those containing only a small bulb refit lamp, Brodrick said that while the LED applied in this technology is getting better and better, but they are generally less than the incandescent light output, light quality and light distribution.

Brodrick also introduced the Department of energy recently test: the Department of energy to buy 33 LED lamp products in the United States in eight large retail stores were tested, the results show that most failed to meet the basic performance parameters of the lighting effect, consumers more satisfied with incandescent lamps or halogen lamps.

In terms of color quality, Brodrick said, LED manufacturers have made significant improvements, more stringent grading is beneficial to the lighting manufacturers. The Department of energy will continue its SSL multi-year work program program to improve lumen output and performance goals. In terms of performance, Brodrick said, we are striving to achieve the goal of cold white light 258 lumens per watt by 2020.