This controller will run twenty-four (24) HID lights at 240 Volts. The only lighting controllers featuring industrial-grade ballast rated relays. Premium quality timer with battery back-up keeps lighting schedule in the event of power failure (located on the bottom of unit). Sequenced lighting delays for each light bank. NEMA 6-15 UL Listed 240 VAC power outlets. 150 Amps input power/120 Amps output power/240 Volts/60 Hz./24,000 Watts.