Main Feature: ✅ Compatible with Yeelight Smart Ceiling Light: The Yeelight smart dimmer switch solves the problem that the wall switch cannot intelligently control after the power turns off. ✅ Yeelight Smart Dimmer Switch Work with Yeelight Smart LED Ceiling Light, Yeelight (450/480/650mm) LED Ceiling Light, Yeelight HOSHI Ceiling Light, Yeelight Smart LED Chandelier. There will be more product support controls in the future. ✅ Bluetooth Remote Control: Yeelight smart dimmer switch, using Bluetooth remote control technology, does not directly cut off the power supply, enabling the smart ceiling light to continue online. Voice & App real-time control. ✅ Single Fire Line Installation Directly Replaces the Ordinary Type: The 86-type wall switch can directly replace. Please according to the electrical code and product manual to install and debug ✅ With a Power Switch On the Bottom: The power switch can quickly restart the device to solve the problem that the luminaire cannot control due to abnormality. ✅ How to use: Connect the cable to the switch box and connect to the Mi home APP to remote control the smart light fixture. Specification: Product model: YLKG07YL Wireless link: BLE4.2 Working temperature: -10~+40°C Working humidity: 0%-85%RH Product size: 86*86*44.5mm Package Contents: 1* Yeelight Smart Dimmer Switch