E26 Medium screw base, A19 Shape bulbs, 5 watts LED Light bulbs, Using 27 pcs 5050 SMD LEDs (max 0.2 watt each LED), AC 110V, 120V / 60Hz Mains voltage operation. Dimensions: 60mm diameter, MOL 135mm. Floodlight with 360 degree, Light output comparable to 40 watt incandescent, Light output: warm White 3000K~3500K, 375 Lumens. 90% more efficient than incandescent bulbs and Halogen bulbs traditional lighting, Lifespan of up to 50,000 hours means that equates to 18 years lifetime if turn on lamp 8 hours a day.