This controller will run four (4) HID lights at 240 Volts. The only lighting controllers featuring industrial-grade ballast rated relays. Plug relay trigger cord into 24 hour wall timer to run your lights. Universal outlets allow total flexibility. Plastic enclosure resists dust, rust and moisture. 30 Amps input power/20 Amps output power/240 Volts/60Hz./4000 Watts.