LED light bulbs for home, MR16, GU5.3 Base, 80 LEDs, LED Spotlight with 25 degree beam, Warm White 3000K~3500K, Output >184 lumens, 3.5W, equal to the output a 30W halogen lamp, AC/DC 12V (AC6~17V constant current controller inside), Dimension: 50mm diameter, 45.2mm length not including pin, 53mm including pin. Just plug it into your 12V AC or DC halogen fixture and start to save on utility bill. This LED bulb have a spotlight with 120 degree beams. The bulb is comparable of 40W halogen bulbs or incandescent bulbs. 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: 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.