The UPM-1 Universal Power Module is a unique device that can allow the user to run additional HID lights or control multiple fans/air conditioners or other high amperage 120 volt equipment. The UPM-1's plug-box is designed to be plugged into a standard household outlet. The 16 foot trigger cable coming from the UPM-1 is then connected to your control device such as a time clock, thermostat or environmental controller. When the control device applies power to the trigger cable, the relay inside the UPM-1 applies power to the twin outlets on the front of the UPM-1 from the circuit that the UPM-1 is plugged into, not from the controlling deices power. The UPM-1 is rated at 15 amps @ 120 volts. 3 year no hassle warranty.