Simply Automated UCS-01 UPB Controller Scheduler-Timer Scheduler-Timer. Automatic on/off scheduling for all Simply Automated dimmers, lamp/appliance/fixture modules and wall receptacle. Designed for ease of use. No computer programming required. Built-in celestial clock computes sunrise and sunset. Calculates daylight savings time. Maintains time and events in event of power loss - no need to reset. Automatically turns on/off indoor or outdoor security lighting. Create night time convenience pathway lighting. Automatically turns on/off appliances, heaters, fans, pumps or motors -- replaces large clunky mechanical light or pump timers. Energy savings dimming feature (from 10%, 20%, 30%, 40%, to 90% dimming levels). Random 'vacation mode' setting. To ensure a proper installation your home should be no more than 2500 square feet and have only one breaker panel. A phase coupler is required in some home installations. Not intended for use in multi-dwelling (condo, apartment, duplex) units.