... driver guarantee 5 years,efficiency>90% ,power factor≥0.98,being compliance to UL,CE standardExcellent LED Source LMR,LMSPerfectly ... ,led deriver and PC case making, and final process to ensure excellent qualityLife Span 35,000-50,000hours, depends ... :ModelPower(W)Input Voltage(AC)Power Factor(PF)EfficiencyColour Tempreture(K)Luminusness(LM)sizelamp holderMateialLPL-OTOO1DC001WAC/DC 12V≥0.6≥0. ...