Program a lamp, TV, stereo, etc. to turn on and off automatically at specific times with the Timex Electronic 7 Day Timer. You can make it look like someone is home even when the house is empty by programming an appliance (like a lamp or stereo) to turn off and on at different times. Or use it to turn a heater on at a designated time to provide heat but only when you need it. It can accept 20 on/off cycles programmed into it for 7 days out (for a total of 140). Also, it has a random feature that will turn the appliance on and off in a random pattern to make the house seem occupied. It features a manual override, which enables the appliance to be turned on and off without affecting the programming. Also, there are pre-installed back-up batteries to save your programs incase of power failure and an LCD that shows the time and day. The timer is rated at 125VAC, and can handle heavy-duty loads up to 15 amps/ 1875 watts and comes with a 3 wire grounded plug. It measures 2 and seven-eighths inches by 2 inches.