E27 Edison socket, 50mm diameter lamp cup with cover, 20 super bright LEDs, LED Floodlight with 120 degree beam, Cool White 5000k~6500k, 58 lumens, equal to the output a 15W halogen lamp. Just plug it into your 120VAC E27 Base fixture and start to save on utility bill. AC120V/60Hz mains voltage operation. Diamension: Diameter 49.6mm, MOL 54mm. 90% more efficient than incandescent bulbs and Halogen bulbs traditional lighting, Lifespan of up to 30,000 hours means that equates to 10 years lifetime if turn on lamp 8 hours a day. Applications included: LED house lights, Residential Lighting, Commercial Lighting, Accent Lighting, Reading Lights, Display Lighting, Desk Lamps, Business Lighting, Security Lamps, Walkway Lighting, Illuminant Lighting, Hotels, Restaurants, Bars, Night Clubs.