LED功率Power:50/100W工作電壓Workvoltage:AC(85V-265V)/(50-60Hz)功率因素Powerfator(PF): 0.9LED效率efficiency:80LM/W光通量Lumens:4000lm燈具效率Fixtureefficiency: 90%發光角Viewangle:50度顯色指數Ra 80色溫Colortemperature(CCT):2700~7000K工作時間LEDlife: 50000Hrs凈重Netweight:3.3kgs光衰Luminancedecrease:keeplighting1000hoursdecrease%1尺寸size290*236*183