This module is an AC-DC/220V-5V isolation switch power module; With overvoltage, overcurrent, over temperature, and short circuit protection, wide voltage input and fixed output; High-performance board, optimized design, suitable for the control board and microcontroller board, and power supply system is very stable and reliable; Double-sided board, small size, easy to install; There is a green light power output indicator light, which is convenient and intuitive to see the working status of the module