Save energy, save money and feel secure with the Defiant 24-Hour Indoor Plug-In Timer. Effective with any electrical device, the timer turns your devices on and off with an easily programmable push of a pin. Just push down the pins, each representing a 30-minute interval, for the times you want your electrical device to stay on. The Defiant Timer is perfect for controlling lamps, seasonal lighting or deterring crime when you are away. For indoor use only.