What is a single fire switch?

The traditional switch is called a single fire switch, and this kind of switch that adds a neutral line to the switch is called a zero fire switch.

Single fire switch: Except for the line connecting the switch to the light, there is only one live wire connected to the switch (traditional switch).

Single live wire switch: refers to that the input wire entering the wall switch is only one live wire, and the other input neutral wire is directly connected to the load without going through the switch. Therefore, there is only one input wire on the wall switch, that is, the input live wire, in the switch.

After the circuit controls the on and off of this live wire, it outputs one live wire to connect the load, so one in and one out, commonly known as the two-wire system.

Most of the existing residential and office buildings only have a single live wire. When purchasing, please pay special attention to the fact that only this type of switch can be selected.

The single fire switch is only connected to the live wire, and the control chip cannot be used after it is disconnected, so it can only be switched manually. It is no different from an ordinary switch and is suitable for users who have already decorated it; while the zero fire switch is connected to the live wire and neutral wire respectively, even if

When the switch is turned off, the control chip is still charged and can continue to be operated through mobile phones or other devices, which is suitable for users who have not decorated.

Extended information The difference between single fire switch and zero fire switch: In fact, the difference between these two smart switches lies in the difference in power supply method.

The zero live wire smart switch is very simple, that is, the switch directly forms a loop through the neutral wire and the live wire to power itself.

The single live wire smart switch draws power directly from the live wire. It directly forms a loop through the neutral wire connected to the lamp. When the lamp has current passing through it, it also forms a loop, thereby forming a flashing light. There is a certain degree of difficulty and instability in technical implementation.

Phenomenon.

In order for a unit to be powered and work properly, a loop must first be formed.

The zero live wire smart switch is very simple, that is, the switch directly forms a loop through the neutral wire and the live wire to power itself.

The single live wire smart switch takes power directly through the live wire, and then how to form a loop?

It directly forms a loop through the neutral line connected to the lamp, and the lamp has current passing through it, which also forms a loop, thereby forming a flashing light. There is a certain degree of difficulty and instability in technical implementation.