This controller will run four (4) HID lights at 120 Volts Maximum 4000 Watts. 120 Volt accessory timed outlet to activate in-line fans to cool your lamps. German built 24 hour timer with 15 minute non-detachable setting tabs. 3 screws in back panel makes timer easy to wire into your power system. On/Off switch that makes lamp replacement easy. Four NEMA 5-20 outlets. Durable powder coated steel chassis. 120 Volt/50 Amps/60 Hz. 3 year warranty.