suitable for Tuya Wifi 30A Relay Module 85-250V Smart Switch DIY 433MHZ RF Controller SmartLife APP Voice Relay-YI WU CHUN HUI Supports WiFi network. Supports numerous WiFi smart switches on one smart phone. Supports status tracking: device status timely provided to the Tuya / Smart life. Supports remotely turn on or off connected appliances, for example light, electric kettle, electric rice cooker, electric curtain, etc. Supports max 8 enabled scheduled/countdown/loop timers for each device. Voice Control: Compatible with "Amazon" Alexa, for Google Home/Nest. This product is a wireless switch supports inching /self-locking mode. Users can add the device to the APP Smart life in order to remotely control connected home appliances or devices. In self-locking mode, customers can remotely turn on/off connected devices immediately. When in inching mode, customers can have two wiring ways to select, and you can set the inching time in APP . WIFi control model, no need to program. No matter where you are, you only need to download a APP to connect the wifi and control the cloud. RF mode , you can control the board with RF 433 remote controller. Receiver Voltage: AC85-250V 50/60Hz Max.Current:4000W / 30A WIFI frequency:2.4G. IEEE 802.11 b/g/n Remote control frequency: 433MHz Preparation before use: 1.Your smart phone or tablet has connected to a 2.4G WiFi with internet 2.Turning on bluetooth helps with the connection 3.not allow to hide wifi (SSID) 4.do not set "not allow Wi-Fi squatter" or MAC address limits on routers The intelligent switch is wired and energized. Observe the green LED.If the green LED fast blinks(Blink twice a second),Press the button for 7s until the green LED fast blinks(Blink twice a second). type: Smart Switch Product Name: Wifi Smart Switch 30A Three control methods: WiFi Control, Remote Control and Manual Operation Working mode: jog, self-locking, interlocking Remote Control Distance: 50m(wild) color:White Material:ABS Package Contents: 1 x Relay Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Please pay attention to the title and description when buying, and pay attention to the title and description when buying.