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 HeatLarger size brings larger lightNo Fire Hazard like that of HalogensSuper BrightUp to 50,000 Hours10V-30VDC / 12 VAC