1、Mini Body: Designed mini body, which suits for most of amounting boxes, switches and wall sockets. 2、App Remote Control: Remote control your lights from anywhere at anytime by smartphone. 3、Voice Control: Enjoy fully hands-free experience with your Alexa and Home Assistant. 4、Timer Schedule: Set a schedule in the app to turn on and off your lights automatically according to your own living habits. 5、Relay Status Setting: Don\u0027t worry about power failure, you can set this switch to restore the state after power on. 6、Stepless dimming: Set an ideal brightness for sleeping, watching movies, and more with your original dimmer switch, the Smart Life app, or your voice. Zigbee dimmer switch module is a device that allows you to control the brightness of your lights remotely through a Zigbee network. Zigbee is  communication protocol that allows devices to communicate with each other and create a network. Features: Mini Body: Designed mini body, which suits for most of amounting boxes, switches and wall sockets. App Remote Control: Remote control your lights from anywhere at anytime by smartphone. Voice Control: Enjoy fully hands-free experience with your and Google Home Assistant. Timer Schedule: Set a schedule in the app to turn on and off your lights automatically according to your own living habits. Relay Status Setting: Don't worry about power failure, you can set this switch to restore the state after power on. Stepless dimming: Set an ideal brightness for sleeping, watching movies, and more with your original dimmer switch, the Smart Life app, or your voice. Note: Needs to be used with gateways! Specifications: Type: 1CH Dimmer Module/2CH Dimmer Module (Optional) Max. Load: 1CH: LED(AC 230V 150W) (AC120V 80W) 2CH: LED(AC230V 2x100W) (AC120V 2x60W) Material: PC Voltage: AC100-240V, 50/60Hz Frequency: 2.405GHz-2.480GHz IEEE802.15.4 Temp: -10℃~40℃ Protocol: Zigbee 3.0 Range: ＜100m IP Rating: IP20 Item Size: 39 * 39 * 18mm / 1.53 * 1.53 * 0.71in Item Weight: 27g / 0.95oz Package Weight: 34g / 1.19oz Package Size: 6 * 4 * 2.2cm / 2.36 * 1.57 * 0.87in Package List: 1 * Zigbee Dimmer Switch Module 1 * User Manual (English) 1 * Zigbee Dimmer Switch Module 1 * User Manual (English)