This controller will run four (4) HID lights at 240 V � maximum 4000 W. The only lighting controllers featuring industrial-grade ballast-rated relays. 120 V accessory timed outlet (max 2 Amps) to activate in-line fans to cool your lamps. Plug relay trigger cord set into 24 hr wall timer. Universal outlets allow total flexibility. On/Off switch makes lamp replacement easy. Removable back panel makes controller easy to wire into your power system. Durable powder-coated steel enclosure. 30 Amps input power/20 Amps output power/240 V/60 Hz/4000 W. US Patent D660,252.