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LED Spectra is concentrated almost entirely in the visible band, the luminous efficiency of up to 80-90%. Also will LED lamp and General incandescent, and spiral energy-saving lamp and the T5 three color fluorescent do has a compared, results displayed: General incandescent of light effect for 12lm/w, life is less than 2000 hours, spiral energy-saving lamp of light effect for 60lm/w, life is less than 8,000 hours, T5 fluorescent is for 96Alm/w, life about for 10,000 hours, and diameter for 5 mm of white light LED for 20 – 28lm/w, life can is greater than 100,000 hours. There is also forecast, LED life expectancy in the future CAP will be infinite.