[ 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 ,google home ,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 .[ 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 NeutralVoltage:AC200-240V 50/60HzMax.load :10-100WOperation Frequency :2.405GHz-2.480GHz IEEE802.15.4Operation Temp. :-10 Celsius + 40 CelsiusOperation R :Less than 100mIP Rating: IP20Types:1 GangColour:WhiteMaterial:plasticSize:(WxDxH) 39.2x39.2x18 mmPackage Contents:2 x Light Switch ModuleOnly the above package content, other products are not included.Note: Light 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.