1.No neutral wire required; installed without rewiring your existing wire with single live wire design;Unique tempered glass panel fits for different kinds of decoration styles and scratch resistance glass panel gives the look to with any wall design.(Attention:A capacitance is a must for normal work that is included in the package.) 2.Differ in features from common switch,this smart switch is to be controlled by various ways alone without interference with the like App control,touch control,voice control and built-in RF433 frequency allows for another control via RF remote control switch with encoding 1527;(Note:433 RF Remote is not included in the package, purchase separately.) 3. Reinsert new features into upgraded Smart Life Tuya App like ON/OFF relay status as last status when power off and backlight switch setting.Compatible with and Google home allows to freely control your connected devices via voice ; remotely on your smart phone via Smart Life/Tuya App wherever you are. 4. 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 for added . 5. No neutral wire required and circuit;only supports 2.4G network;a much easier pairing mode for adding the device with WiFi and Bluetooth connected Working voltage:220V AC Load Power:3-300W/(Note:If it is used for LED or energy saving bulb,the power load should be less than 100W) Wireless type:Wi-Fi 2.4GHz RF Frequency: 433MHz. Colour:White Material:plastic type:2- Package Contents: 1 x WiFi Smart Light Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.