GU10 light bulbs led replacements, 5 Watts Using 4 pcs 1 watt high power LEDs, Spotlight with 45 degree beam, Warm White 3500K, Mains voltage operation (Input between AC 85V and 260V). Dimensions: 50mm diameter, MOL 61mm including pin. Light output comparable to 40 watt incandescent, 320 Lumens, 90% more efficient than incandescent bulbs and Halogen bulbs traditional lighting, Lifespan of up to 60,000 hours means that equates to 20 years lifetime if turn on lamp 8 hours a day. Applications included: Home lighting, 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.