[ No Neutral Wire Needed Light Switch Module ] -No neutral wire needed ,convenient to upgrade old house light switch system without neutral line.   [ APP Remote Control ] -Download smart life /Tuya smart APP on your phone&Tablet to control the switch anywhere/anytime   [ Hand Free Voice Control ] -Compatible with amazon alexa echo ,google home ect ,a simply command to voice control the receiver.   [ Group-Control Function ] -Multi switch in different room can set in a group ,realize group control function.   [ Dual Way Control ] -Can fully upgrade 2 way control switch without change wiring design of house.      [ Linkage Function ] -It can linkage with other switch module ,sensor and appliance in your home ,make create different scene possible,such as sleeping mode,working mode,dinner mode ,back home mode ect.   [ Timer,Schedule & Count Down Function ] -You can create schedule according to your personal requirement ,as well as timing and count down,smart and DIY your daily life to the maximum extend.   [ Status Memory ] -When electricity cut off and on again ,you can definite the status as on,off or as last status.   [ Switch Type Setting Function ] -Switch type can be setting ,such as rocker switch and button switch.Also state of rocker switch can be setting as flip to change state and state synchronous.   [ Family Share Function ] -You can share the switch to your family with the limited right,create a smart home together with your family member.   [ Easy to Install ] -Mini size switch module can be installed in switch box or in lamp box easily.(Notice: please turn off electricity during installation).   Product Type: 1 Gang Zigbee Switch Module No Neutral   Voltage:AC200-240V 50/60Hz   Max.load :10-100W   Operation Frequency :2.405GHz-2.480GHz IEEE802.15.4   Operation Temp. :-10 Celsius + 40 Celsius   Operation Range :Less than 100m   IP Rating: IP20   Types:2 Gang   Colour:White   Material:plastic   Size:(WxDxH) 39.2x39.2x18 mm      Package Contents:   2 x Light Switch Module