TORK EWZ201C 2 7-Day Digital SPST and Single Channel DPST Time Switch Scheduling: 32 on/off set points for individual programs for each day of the week, minimum setting 1 minute Daylight savings: automatic adjustment (can be omitted) Power outage backup: permanent schedule retention, super-capacitor provides 4 days of real time backup Enhanced switching: inrush current limiting technology protects relay contacts for extended life with zero cross switching, rated for led lighting drivers and electronic ballasts Timing accuracy: line frequency