Ultraline MR16 12V series features a titanium oxide coated reflector and consistent color. Integrated UV protection. Precisely focused light cone. Cool beam effect. Universal burn position. Features front glass cover. Average life is 10,000 hours. Lasts up to two time longer than other MR16 lamps. Available with 3000K color temperature. 12 volt MR16 GU5.3 base halogen available in 35 watt with 24 or 36 degree beam angle or 50 watt with 12, 24, 36 or 60 degree beam angle. 2 inch diameter x 1.78 inch length.