The Recycle Adjustable Timer features: 1 min to 60 min ON time, 5 min to 12 hr OFF time, LED indicator light and adjustable ON modes for day, night or both use. For use with pumps, fans or CO2 systems. Housed in a rust, dust and water resistant enclosure, this controller will function in the toughest environments. Ratings: 12 Amps maximum/120 V/60 Hz.