Fool-type wifi control module, no need to , only need to download an APP, link WIFI to control the built-in cloud. As long as the module is connected to WIFI, the mobile phone can be controlled anywhere in the country. Working mode: This product is a wireless switch supports momentary(inching) /self-locking/interlock work modes. Users can add the device to the APP eWeLink in order to remotely control connected or power circuits. Note:The relays are switches without output, the power supply input (AC/DC) just for the PCBA.Tap the work mode setting button manually, the product can change the working mode. When in inching mode, you can have two wiring ways to select: -Turn on 1s and then auto-off -Turn off 1s and then auto-on. When in self-locking mode, you can remotely turn on/off connected devices immediately. When in interlock mode(only 2- and 4- supports), you can remote control AC/DC motors. The product enables remote control of through the mobile application eWeLink, available on both Android and for iOS. Functions of the Module: 1.default jog function: the phone is pressed to open, the relay is closed quickly (the default interval is 1S), and it is disconnected, and it also has the function of timing sharing 2. Press the inching self-locking button and the status light is on, at this time it is self-locking, the mobile phone presses to open the relay to pull in, and press to the relay to disconnect. Working voltage: USB 5V/DC7-48V -USB port power supply is more convenient Controlled equipment voltage: DC7-48V Supports control of different voltage ranges Indicator light: with signal indicator light, relay pull light Board consumption: Less than 1W Standby current: 80mA Standby power: Less than 0.5W Inputcurrent: 10A; Power: 2200W type: Smart Wifi Switch Model Number: eWeLink Smart Wifi Switch color:Green+black+blue Material:PCB+electronic components Package Contents: 1 x Smart Wifi Switch 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.