Working voltage: AC 90-240V, 50/60Hz. Wireless connection type: 2.4GHz Wi-Fi. Maximum wiring capacity: 10mm on both the power supply and load sides. Applicable current scenario: AC1, used in circuits controlling purely resistive loads such as heaters, incandescent lamps, ovens, etc. Universal DIY module for smart home: Use the SY1 smart switch to switch the small appliances in your home from traditional mode to smart mode in less than 10 minutes. With this small Wi-Fi switch, you can turn a lamp, fan, or space heater into a connected object. APP remote control: You can control your household appliances via the "Smart Life" or "Tuya" app. There is no distance or time limit. The "Smart Life" app can be downloaded from the App Store and Google Play. Energy Consumption Tracking: Analyze real-time and historical energy consumption of connected devices, display the load current, voltage, and power in real time, and record (hours, days, months, and years). WIFI SWITCH WITH VOICE CONTROL: The connected WIFI switch is compatible with Amazon Alexa and Google Assistant voice control, you can turn the device on or off with voice commands. With the SY1 switch, you can keep your hands free. 4 Timing Modes: The smart switch has a delay mode/countdown mode/cycle delay/astronomical delay. A universal connected switch prevents you from forgetting to turn off the device. Adjust the operating time of your devices according to your needs to avoid unnecessary power loss and save energy.