If you want to install the Tmall Elf, do all the light switches have to be equipped with zero wires?

All the lights are composed of neutral lines, and none of them will be on. If the intelligent switch has a neutral wire, the light will be more stable and the electricity will be safer.

The main difference between the intelligent switch and the traditional switch in installation is that the traditional switch is a single fire switch and does not need to be connected to the zero line. However, due to the rich functions of intelligent switches, internal components also need power consumption. Therefore, if the intelligent switch has a zero line, the lamps will be more stable and the electricity will be safer.