Sylvania Smart Home 73743 Lightify Smart Dimming Switch, Dimmer, White ZigBee Switch: A compatible ZigBee hub is required to control this switch. Pair your switch to a compatible ZigBee hub such as SmartThings (dimming not supported) or OSRAM LIGHTIFY. Programmable Buttons: Program the 2 buttons to turn your light or group of lights on and off or set a specific scene. Dimming Light Switch: Hold down the buttons to increase or decrease brightness. Install over existing switch: Place over your existing light switch to avoid accidentally turning off the power. Rocker, toggle and solid backing plates included. Battery operated and included. Not for use with traditional in wall dimmer switches. The OSRAM LIGHTIFY Gateway is not required when using a different compatible ZigBee hub. ZigBee smart devices will not pair directly to voice control devices such as an Amazon Echo Dot or Google Home.