1. 2-in-1 device for wireless scene and dimmer switch ,it can create smart scenes for your Tuya smart devices in Smart Life App;Tap-to-run to get another easier control for all tuya smart devices with simple operations on the switch. 2. Wireless control for ZigBee dimmer lamp under remote mode:Add the smart knob switch into Tuya smart ZigBee gateway and then add smart ZigBee lamp bulb under the remote dimmer interface in App for wireless remote control to your lamp.(Note:Only ZigBee lamp can be added for control) 3. Pair with Tuya ZigBee gateway:Tuya ZigBee gateway is a must for this rotary scene switch,which is a bridge for all ZigBee smart devices under Tuya Smart APP for normal use. 4. Four operations under remote mode to meet different demands:Single to ON/OFF the bulb,rotate to normal dimmer, and rotate to set the color temperature,or long more than 3 seconds to set color. 5. Create multiple intelligent scenes for Tuya smart devices in App under scenario mode:To create any smart automation as you want on your smart phone app to your another intelligent lifestyle,no more voice needed,no more time to open your app,only simple operation required to trigger the scenes you have set,when you are tired from one-day work,such as home mode,shower mode or sleep mode. Size: 44.8x44.8x18.8mm Built-in battery: CR2032 Operating voltage: DC 3V Working current: Standby current less than equal 5uA Maximum current less than equal 10mA Wireless: zigbee3.0 Wireless transmission distance Open range equal 30m Operating environment:-5℃ to 45℃(23℉ to 113℉)/less than equal 95% (no condensation) Color:White Material:plastic Package Contents: 1 * Tuya ZigBee Smart Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.