1.CQC, CE, ISO9001: 2000, SAA, QEC, EMC, CCC 2.Constant power output, constant flux 3.PF> 0.96; Ra> 83; THD 4.1% , average life time 12000h. 4.Pure rare earth trichromatic phosphor; U.S. Chip with large capacity; ST FET; production level IP65 5.No strobe, no glare, low temperature start, wide voltage protection, convection cooling holes, insulating heat cushion; 6. Applications: school, super market, workshop, underground garage… 7. Save more money