Lemonbest Dimmable 12W Pure White 6500K Household E27 Screw Base COB LED Lamp Spot Bulb Downlight 110V Flood 60 degree Beam Angle Lemonbest high quality standard;Input voltage:100V~145V; Dimmable 12W E27 LED Spotlight with a high power COB led chip Low light decline with high brightness; High energy efficiency & spaced edge for heat sink No UV or IR Radiation; 48 hours aging time; over 50,000 hours lifespan guaranteed Ideal for office, exhibition, home, indoor use All the led SMD bulbs are built in surge protection and internally fused, 100% safety to use.