Century Short Period Repeat Cycle Timer Day/night, or 24 Hours Operation EASY TO USE: Our timer provides the simplest way to repeat a task. Use on your humidifiers, ventilation fans, pumps, and more ON & OFF REPEATED: Set your appliance to cycle in intervals, turning on between 5sec - 30min, and off between 5sec - 60min DAY, NIGHT, & 24: Easily switch between Day Only mode, Night Only mode, or 24 Hour mode. SIMPLE SET-UP: Just turn the dials to your desired settings. Let our timer do the work for you. SAFE & RELIABLE: Our 3-prong, grounded timer outlet is ETL listed and rigorously controlled for quality and safety. Rating: 125VAC, 60 Hz, 1875W, 15A Tungsten & Resistive, 1/2HP