: 1.This smart Tuya ZigBee 3.0 dimmer module is designed with ZigBee 3.0 protocol specially, compatible with Tuya ZigBee hub to realize the whole linkage of your house,a really good substitution for unstable Wi-Fi. ZigBee 3.0 protocol with mini design suits for EU/UK wall switch box ,and easily hide it into your hidden wall switch box of your traditional switch;traditional switch and this smart module can work independently without interference. (Note:This module is only suitable for reset switch.) 2.1/2 Way Dimmable: Adjust the brightness via Your Voice or Smart Life App freely.It can not only be used as a 1 way circuit switch,but also 2 way supported(two switches control one light).Simply connect it to one of your two traditional switches,then you are able to convert your connected device into a smart one(for 2 way circuit). 3.Considering the status of unstable network or no network,ZigBee 3.0 switch module is really an irreplaceable must to combine with ZigBee gateway to form a home LAN,NO MORE WORRY about no and weak network,easily get control via connected devices as long as there is stable ZigBee signal;Allows for more devices connected via ZigBee than WiFi protocol. 4.Take full control of connected appliances with timers, schedules and countdown (1/5/30 mins, 1 hour, etc.) with Smart Life and Tuya App; share control with family and friends for added convenience. 5.Easy DIY Installation:Simply hide it into wire box with its mini design and wire it to your traditional reset switch for normal use;Add the device to Tuya ZigBee hub to start intelligent controls in Smart Life App. Specifications: Voltage:AC 90-250V 50/60Hz Max Power:2*50W 110V / 2*100W 220V Size:52x47x18 mm Wireless Protocol:ZigBee 3.0 Operation temp:-10~45 Case temp:+80 (Max.) Operation range: 200 m IP rating:IP20 Package Included: 1*2 Gang ZigBee Dimmer Module 1*User Manual Notes: This product needs to be used with ZigBee 3.0 gateway