The Spartan™ Series Repeat Cycle Timer is an easy to use and reliable product. It features a 5 second to 30 minute ON time, a 5 second to 60 minute OFF time and adjustable modes for day, night or 24 hours. Designed to precisely control pumps, CO2 systems and fans. The Repeat Cycle Timer is cULus listed and features a durable plastic housing. 15 Amps maximum/120 Volts/60 Hz.