[No neutral is needed for the light switch module] -No neutral is needed, convenient for upgrading. upgrades the old neutral line lighting switch system. [Group control function] -Multiple switch in different rooms can be set in a group, realize the group control function.[Remote Control] double track] -Can upgrade Fully level the control switch to the correct position. 2 way change wiring. [APP Remote Control] -Download the smart life/Tuya smart app to your phone and tablet to control the switch anywhere No matter when [Hands-on voice control] -Compatible with , google home, a simple command to voice control the receiver. [Linking function] -It can be linked à Thanks to your switching modules, sensors and devices, you can create different scenes, such as sleep mode, work mode, dinner mode, home mode, etc. , etc.[Timer, calendar and counting function Countdown] -You can create a schedule based on personal needs, as well as time and count backwards. countdown, smart and DIY your daily life to the fullest.