EWZ Series Multipurpose Control Astronomic 7 Day Time Switch, 120-277 VAC Input Supply, 1 Channel, SPST Output Dry Contact Automatic on/off control for individualized daily operation Digital 7-day, 24-hour display with 20 on/off cycles each day, one-minute minimum cycle, manual override switch Automatic compensation for daylight saving time, leap year, and sunrise and sunset variation based on Earth's latitude 120-277 VAC input voltage for multiple uses Noryl plastic alloy indoor/outdoor enclosure with locking hasp