This product is a wireless switch supports inching /self-locking mode. Users can add the device to the APP for in order to remotely control connected 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: Turn on 1s and then auto-off, Turn off 1s and then auto-on. 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. Features: Working voltage:7-32V With signal instruction light and relay pull-on instruction ligh Power Less than 1W, and quiescent current:80mA Cutover current Less than 10A , Cutover voltage Less than 250 10A Relay Mode The life of Relay Model is more than 1,000,00 Insulation resistance: 100 Maximum pull-: 15m Maximum release time: 5m Working Temperature: -40 to 70degre Working Humidity: 40% to 80% RH Default inching Function: Press the open relay by mobile phone, then cut off the pull-on imediately(default one second), it has the timing-share function at the same time. Self-locking when press the inching and locking button with the light on. Press open relay to pull-on, press close relay to cut off. Material: PCB + electronic components colour: green Package Contents: 1 x Smart 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.