This Dimmer will install between your for 12 Watt LED Low Voltage Power Supply w/ Photoeye. The Dimmer Switch can customize your LED Lighting from Weatherables. The remote control has a 60 foot range and features high, medium and low modes. It also has a twilight mode to run your lights at 5% output. Remember, the 50 watt power supply comes sandard with a dimmer you only purchase this if you have the 12 watt model.