Patented EZ-Set timer. Indoor timer that is easy to program and features a built-in battery back-up so it will not lose the program if there is a power outage. One custom ON/OFF setting. 24-hour repeating cycle. Includes battery back up, one polarized outlet, and a manual override button. Patented angled housing makes timer easier to read and program. Compatible with CFL (compact fluorescent), LED (light emitting diode), fluorescent, and incandescent bulbs.