TORCHSTAR PWM Dimming Controller for LED Strip Light Super Energy-saving as replacement for 50 watt Halogen light bulbs while last five times longer Wide range of voltage of 85V~265V, work directly with 110V (in the United States) These LED light bulbs are widely used as down lighting or accent lighting in shops, offices and the home Power saving and long life-span LED bulbs are perfect for 24/7 constant use The LED bulbs for both main and moonlight illumination are possible