SYLVANIA heavy duty indoor weekly digital timer with single grounded outlet offers a 140 on/off programs per week for maximum versatility and home security. It also saves energy by eliminating wasteful "standy by" power. This timer has the option of using AM/PM hours (00:00 to 12:00) or 24 hr display (00:00 to 23:59). The large LCD screen provides easy programming visuals. The back up battery stores the entered programs in the event of power loss so you will not have to re-program the timer again Ideal for use with lamps and appliances. Programming assistance is available through our toll free customer service department 1-888-548-4484. Rated CSA/CUS 125V, 60Hz 15A/1875W Resistive, 1250W Tungsten. Do not exceed rated capacity.