Parameter Model: 2 Gang WiFi Switch ModuleInput: AC100-240V 50/60HzCurrent: 10ALED: Max 400W/GangOperation temp: -10-+40Case temp:Tc: +80 (Max)Dims (LxWxH):47.3x20x47.3 mmNote : Neutral Wire Required;WiFi 2.4GHz Required Feature 1.Can be installed in old wall box---Easy replace your traditional light switch to make it smart,mini switch module fits behind the switch in a switch box and neutral wire required. Works with 2 gang 2 way switches ,only need 1 module .See circuit diagram in the attached pictures.2.Works With HomeKit--- Easily Integrate your devices into your IOS system ( Home APP)to control them more conveniently. Note: HomeKit remote control requires an additional networked Appe device at home such as an iPad, HomePod, or Appe TV.3.Smart and Voice Control---Main Smart Function:APP Control on and off, Timer Setting, voice control (Compatible with Siri,Alexa, Google aistant,Yandex Alice ) and Family Sharing, group control functions. At the same time, it can also create smart scenes with other HomeKit / CozyLife smart devices on the APP to achieve scene linkage4.Remember last status---There are three states available in APP. ON OFFRemember last status.Don't worry about power failure,you can set this switch to restore the state after power on.5.For Android users---It works with any Android smartphone with Android 5.0 or higher. Android users will have an effortle experiences when configure with CozyLife app. Then skill 'CozyLife' with your smart speakers as you wish.