Replace an existing light switch with Keypad Dimmer to remotely control lights and appliances from a single wall switch location, all without running new wires. The Keypad Dimmer has a built-in 600-watt dimmer that is controlled by the large top and bottom buttons. The 4 other buttons can be linked wirelessly to control other lights or appliances in other parts of the house. All buttons feature backlit status LEDs so you can see at a glance which lights have been left on (or off).