1. There are many styles and series of range hoods, the socket position cannot be accurate, and the fixed socket thread will be exposed, which will not only affect the appearance, but also cause safety problems.
2, the lampblack machine socket is not fixed, but the socket is inverted on it, which is convenient for the installer to install.
3. The socket of the range hood is fixed, so when there is a problem with the circuit, it will be more troublesome to maintain, and if the socket is not fixed, it will be more convenient for maintenance personnel to check the circuit problem.