Input voltage : DC/AC 7-32V , Micro USB 5V input. Max current : 220W/10A. WiFi standard : WiFi 2.4 ghz b/n/g. Size : 1CH 69*41*20mm The life of Relay Model is more than 1,000,00. Default inching Function: Pre the open relay by mobile phone, then cut off the pull-on imediately, you can set the inching time in APP , it has the timing-share function at the same time. Self-locking when pre the inching and locking on with the light on. Pre open relay to pull-on, pre close relay to cut off.