The Wireless Smart Dimmer can turn the light on and off, switch to the moonlight mode, adjust brightness and color temperature, and choose the color (from 16 million colors if applicable to the devices). With adhesive tape on the back, it is free to stick anywhere. Or, you can just put it wherever you like. With built-in Bluetooth, you can control Yeelight devices easily without wiring. Due to low power consumption, it has a useful lifetime of 36 months (40 times a day). Changing the battery is simple with a sliding cover of the battery compartment. The smart dimmer is compatible with all Yeelight Ceiling Lights and Yeelight curtain controller. It is Reddot Award 2019 and iF Award 2020 winner.