Lights of America 2101LEDG10-41K-16 4-Watt Power LED MR16 G10 Base Bulb, Bright White Replaces halogen bulbs in track, spot and curio cabinet applications LEDs do not radiate heat like the halogen bulbs and have a wide angle beam with suggested use in 120Vac rated fixtures Instant full brightness-no warm up time like fluorescent bulbs Indoor use only and non-dimmable Assembled in the USA