... source. The attenuation of high power LED light source is less than 3% by 3000hrs aging test under temperature ... high luminous efficiency of single LED.3. long life-span: 50,000hrs, 6 times longer than traditional lamp.4.Superior raw materials. ... an replacement of traditional crystal lamp, Mirror lamp, Bedside lamp, Ceiling light, etc. High quality LED Ceiling Down lamp 3w Lighting fixture (UL-DA03 ...