Technical parameters: Type: NV-RS660-W30-WN9 LED power:30w-120w Work voltage:AC(85V-265V)/freqency(50-60Hz)DC(12V24V36V) Power Factor:>0.9 Luminous Efficiency:80lm/w Efficiency of the Power Supply:>90% Beam Angle:120° Color Rendering Index:Ra>80 Color Temperature:2700k-7000k Life Span:>50000Hrs Net Weight:12kg Size:660*270*173mm