The TCP 7-Watt (50W) Soft White (2700K) 12 Volt MR16 LED Flood Light Bulb uses 85% less energy than a traditional 50-Watt MR16 halogen bulb with an energy cost of only $.84 per bulb. Unlike halogen bulbs that produce a lot of heat, these bulbs will always be cool to the touch. These dimmable bulbs are indoor/outdoor enclosed and are ideal for track lighting, but can be used anywhere with a bi-pin base.