Power 3W Input Voltage DC12V; LED Source CREE/BridgeLux/EPISTAR LED Frequency Range 50~60Hz Power Factor(PF) >90% Total Harmonic Distortion <15% Color Temperature 2700-4000K/4000-6000K/6000-7000K Color Rendering Index(CRI) >80Ra LED Luminous Efficiency 40-50LM/W Working Environment working temperature -40oC~55oC working humidity 10%~90% IP Rating IP45 Scoket MR11/MR16/GU10/E27 etc. Dimensions Ф50*H46MM Beam Angle 25/45°