... .low light attenuation 4.life span>60,000 3W LED Ceiling LightCopper cooling system: working temp less than ... color temp range, even with mixture colorDifferent size: 1W,3W5W,7W,9W,12WETL/CE (EMC, LVD)/RoHS/ ... toughened glass cover3. High efficiency and power factor LED driver4. Wide radiation angle, huge lighting area5. ... lamp, Sodium Light or HPS light 3W LED Ceiling Light(High Power,high quality)