G4 Back Pin 0.9\” (23mm) LED Light\” G4 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, which produces little heat, making it the most robust on the market today. Compact size Long Life: Up to 50,000 Hours No Fire Hazard Like Halogens Specifications: Voltage – Input Range (Volts): 10-30v Box Dimensions: 2\”H x 3\”W x 5\”L WT: 0.03 lbs UPC: 855748005776