G4 10 LED Back Pin LightG4 utilizes High Power LEDs for more than enough light to read and work by. As with all our replacement bulbs the G4 includes a built in Buck Regulator making it the most robust on the market today and produces little heat. High Power - Low Heat Larger size brings larger light No Fire Hazard like that of Halogens Super Bright Up to 50,000 Hours 10V-30VDC / 12 VAC Specifications: Voltage - Input Range (Volts): 10-30v or 12v Box Dimensions: 2"H x 2"W x 4"L WT: 0.03 lbs UPC: 894953001623 Quick Guide (pdf)