Tuya ZigBee 3.0 Light Switch 220V Smart Wall Switch EU No Neutral Wire Required No Capacitor Needed Works with Alexa Google Home Main Features App Remote Remote control the smart light switch from anywhere at anytime by your smartphone or tablet via free app Smart Life. HUB REQUIRED. Hands-Free Voice Control This smart light switch is perfect compatible with Amazon Alexa Echo and Google Home Assistant. Just simply give a voice command to Alexa or Google Home assistant to turn on/off lights when you are on go. Timing Function There are 3 modes of timing setting in the app, which are timing, countdown and schedule. You can set schedules for different lights to automate the lighting system of your house as well as saving energy. Group Control You can set several switches in a group by app. For example, setting switches of living room and dining room in a group. Then you will be available to turn on or off them by one-tap via app. Sharing Function Sharing the smart light switch with your family members by app to control your home together. Smart Scene Creating your own scene mode to trigger ON/OFF home appliances by departure mode, home mode, temperature, humidity, or other environmental conditions. Specification Color: WhiteSize: 86*86mmShell Material: PC/UL94V0Input Voltage: AC 220V 50/60HzMax Power: 400VZigBee Standard: ZigBee/IEE 802.15.4Operating Frequency: 2.4GhzReceive Sensitivity: 101dBmTransmite Power: 19dBmStandardby Power:20mWIndicator Light: LEDApp: Smart Life/TuyaSmartVoice Control: Amazon Alexa, Google Home AssistantCertification: CE, RoHS