Update1:Multi-control association in a much easier way Update2:No capacitor featured for the no neutral wire version for better user experience Update3:Single live wire/neutral wire required designed as two versions optional for different wiring in one switch Update4:Backlight ON/OFF optional Update5:Relay status adjustable when power off 1.New design with neutral wire required and single live wire featured in one switch panel;No neutral wiring required for the single live wire version;Wire the neutral wire on the switch when needed;No capacitor needed for the new update version for better user experience without noise from electric current;Tuya Zigbee hub is required for the normal use of this switch,featured as much compatibility with tuya smart devices than any other hubs. 2.New idea for 2/3 Way circuit (two switches control one light)that is explained as multi-control association of this switch to other smart switches in App;ON/OFF relay status as remember last status when power off and backlight switch setting in Smart Life App for better sleep at night;capacitive touch control, turn on/off your light with a single touch and scratch resistance glass panel gives the best look to blend with any wall design.(Note:You can multi-control associate of this switch to multiple different switches,but several gangs on one switch is not available,only one gang on one switch can be associated for multi-control.) 3.Differ in features from traditional common switch,this smart switch is able to be controlled by various ways alone with the best value like App control,touch control and voice control;achieve multi-control by associating to other smart switches to get 2/3-way circuit for your house lights. 4.Compatible with Alexa,Google home and Yandex allows free voice control ;remotely control devices and intelligent settings allowed on your smart phone via Smart Life/Tuya App wherever you are;Take full control of connected appliances with timers, schedules and countdown (1/5/30 mins, 1 hour, etc.) with the app; share control with family and friends for added convenience 5.No more worries about purchasing the wrong version for your house wiring limited;only supports 2.4G network. Specifications: Working voltage:AC100-250V,50/60Hz Current type:Total 10A Inductive load(LED/CFL):3-120W Resistive load(Incandescent):3-300W for 110V;3-600W for 220V Wireless type:zigbee