4W Dimmable MR16 LED Spotlight 12V 3200K Warm White 60 Degree Beam Angle (4x3 CREE LEDS - 560 Lumen - 50-60 Watt Equivalent) Super Energy-Saving, save more than 95% by ordinary bulbs, Equivalent to 50W - 60W Halogen Bulb & lasts five times longer MR16 standard shape: Bi-pin base (GU5.3), directly replace traditional halogen light bulb Low 12volt lighting product, safe work voltage for human being and generate less heat than traditional light bulbs Low Voltage: 12V AC/DC compatible; DIMMABLE when working with electronic dimmers Long lifespan: perfect for 24/7 constant use, application including accent lighting; art galleries; hotels, museums, offices, restaurants, retail and general lighting