There has never been a home timer like the AutoChron Programmable Wall Switch Timer. That's because the AutoChron allows you to control the lights or other devices, such as ceiling fans in your home that don't plug into the wall but are controlled by a toggle wall switch. The AutoChron wireless wall switch timer offers 7-Day, 9 On/9 Off programming for convenient operation of your home's lighting and appliances controlled by a toggle switch. The timer fits over any existing toggle switch without removing the wall plate cover! Use it to control indoor lamps and lighting, ceiling fans, porch lights, landscape lighting, and any outlets controlled by a wall switch. Because you can set the device to operate a various times of the day, you can avoid a predictable, timer-controlled look that may tell would-be intruders that your home is unattended. Illuminated buttons make it easy to find AutoChron in the dark! AutoChron saves you energy and money and provides peace of mind. And, the AutoChron is not affected by power failures so it will come on when it has been scheduled to come and off.