The Hercules? 3 is a trigger cord style power controller. It provides the opportunity to utilize an independent 15 Amp outlet to run an appliance via the cord (i.e. operate a dehumidifier). Your gear can be activated by the trigger cord set via an environmental controller or timer. The Hercules? 3 comes with a 15 ft trigger cord set and a heavy-duty ballast rated relay to handle the heaviest of power loads. Will operate any 120 V appliance at 15 Amps. Enclosure resists dust, rust and moisture. 15 Amps maximum/ 120 V/ 60 Hz.