Intermatic ET8215C Time Switch, 2-Circuit/30-Amp, Gray Automatically switches loads according to a preset weekly schedule Multi-volt operation from 120-277 VAC, 50/60 Hz To-the-minute programming for accurate load control and reduced energy costs Astronomic feature provides sunset ON and sunrise OFF settings to eliminate the need for separate photo control devices Astronomic programming can be combined with independent programs to provide a sunset ON and timed OFF program