1,CE CCC UL ISO9001 2,energy save,low energy consumption 3,5Ywarranty,cost effective 4,fast delivery,energy saving light eco ... The light effect is above 80LM/W. Compared with incandescent lamp, and ordinary energy-saving lamp, it can save energy more than ... temperature is high and lowLow harmonic content: harmonic content<8%above 100,000 hours which is incandescent lamp’ 100times ,is energy-saving ...