... 3.Optional lampholeder: E27/MR16 4. life apan:30000hrs 3W High power MR16 spotlight Features:1. NO IR,UV, heat radiation ... than incandescent lamp.3. Easy installation with existing socket4. Low power consumption, no stroboscopic, no electromagnetic interference, instant start, life ... housing colorSilverLife Span30,000hrsItem DimensionD50*50mmLighting Angle45 degree 3W High power MR16 spotlight