Intermatic ET90115C Timer, 30A 120-277V SPDT 365-Day Astronomic Energy Control w/Type 1 Steel Enclosure 365-day astronomic timing Automatic input voltage selection from 120 to 277 VAC, 50/60 Hz Over 4,000 events plus holiday schedules 30 Amp rated contacts 100+ hour supercapacitor maintains date and time in case of power outage USB connection for uploading, downloading and transferring of programs Ethernet capable for networking of controls to other controls and PC tools Easy to follow on-screen menus for programming to-the-minute accuracy Non-volatile memory protects programming indefinitely Firm