Foxconn subsidiary (Hon Hai Precision Group) LED manufacturer, Peixin Semiconductor Industry Co., Ltd. will commercialize high-power LED with luminous efficiency of 100 lumens per watt in March or April this year. The company expects LED light efficiency by 2010. Will reach 150 lumens per watt, helping to halve the cost of street lights using LEDs.
Since Japan's Nichia Corporation introduced LED luminous efficiency of 100 lumens per watt in 2006, other international LED manufacturers Cree, Philips Lumileds, and OSRAM Opto Semiconductors will follow the LEDs with 100 lumens per watt. The compound annual growth rate of high-power LED lighting applications is 75.2% from 2006 to 2010, and the market size reached 380 million US dollars in 2008.
Cree's LED chips have a light efficiency of 130 lumens per watt, but are difficult to commercialize due to high cost. Therefore, the light efficiency of LEDs is mainly 70-80 lumens per watt, and 60-75 lumens per watt can replace the current high-pressure sodium lamps. The main obstacle for LED manufacturers is to solve the heat dissipation problem of LEDs and maintain light efficiency.
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