Tuya ZigBee Mesh - You can add up to 256pcs Sub ZigBee devices in Tuya ZigBee Mesh Network.- Please make sure you already have a Tuya ZigBee Gateway, it's a must for all the Tuya/Smart Life ZigBee devices.- The zigbee relay switch module control distance is 10m, and the device supports the zigbee mesh function, so users can create their own smart home network. Voice Control Works with Google Assistant and Amazon Alexa Your Original Wall Switch Still Works The module works with the wall manual switch, so after you install the module in the switch box, the original mechanical switch still works.App remote control, voice control, wall switch works. Patent design Dimensions: 47mm*48mm*22mm, can fit most EU wall box Wiring Method How to install the module? Specifications Input Voltage : 100-250VAC, 50/60HzOutput Voltage: 100-250VAC, 50/60HzMax. Load: 5A / GangWireless Type: ZigBee 3.0APP Name: Smart Life or Tuya APPVoice Control: Amazon Echo Alexa, Google AssistantDimensions: 47mm*48mm*22mmWorks with toggle wall switch