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 to activate in-line fans to cool your lamps. 24 hr timer with 15 min non-detachable setting tabs. Universal outlets allow total flexibility. Removable back panel makes controller easy to wire into your power system. On/Off switch makes lamp replacement easy. Durable powder-coated steel enclosure. 30 Amps input power/20 Amps output power/240 V/60 Hz/4000 W. US Patent D660,252.