The HET01-C is an in-wall digital timer switch with 7-day programming. This timer switch allows users to program and save up to 18 unique pairs of ON/OFF settings. Program unique lighting schedules for all days of the week, individual days of the week, weekdays-only, or weekends-only. The digital timer features a large LCD screen and a built-in battery pack that retains saved programs in the event of a power outage. A manual override button allows the load to be turned ON/OFF at any time. This device works with most lighting types.