The ETL listed Titan Controls Hercules 2 is a 'trigger' operated, high amperage controller. This convenient product allows you to operate up to 50 amps of lights, heating or air conditioning, by hooking up 120 volt or 240 volt power through the 'Power Input' side and connecting your lights, heater or A/C to the 'Power Output' side. The appliances can then be activated by a 120 Volt -15 foot 'trigger cord set' via an environmental controller, external timer or other such device. A heavy duty industrial grade relay makes it dependability and perfect for your hydroponic and horticultural needs. 50 Amps/120 Volt OR 240 Volt/60 Hz. 3 year warranty included.