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Because foreign governments under enormous pressure of energy saving, adopt policies to encourage and promote LED lighting product applications. United States, Japan, EU and other developed countries, chosen by the Government to set up projects, budgeting and program implementation: Japan& acute;s & quot;21st Century Lighting& quot; program from 1998 to 2002, spent five billion yen to implement semiconductor lighting; US & quot;National Semiconductor lighting plan & quot;from 2000 to 2010, $ 500 million investment; the EU& acute;s& quot; Rainbow Project & quot;, started in July 2000, funded by the EC to promote the use of white LED.
While the LED-related products, the Austrian lighting design company uses 14,000 white and color mixing LED lighting throughout the room, light levels reach 600 ~ 700Lux, enough a general office lighting. Calculated using the computer white, blue, blue / green, amber and red diode mixing to obtain 2500 ~ 3000K warm color temperature, color rendering index is very close to the best of fluorescent lamps.
In Sweden, SwedZsh NationalRoad AdminZstration use LED as traffic lights, in order to reduce the demand for heat capacity of conventional traffic lights.
In 2005, the solid-state lighting system the United States, Japan, Europe Group composed of eight and technology alliance ASSIST develop a & quot;general lighting LED life& quot; technology standard that specifies the definition of common LED life, methods of measurement devices and systems.