The HLK-5M05BL is a compact and reliable AC-to-DC power supply module designed to convert high-voltage mains AC into a safe and stable 5V DC output. It delivers up to 1A current, making it suitable for powering microcontrollers, sensors, relays, and other low-power electronic circuits. This module is easy to integrate directly onto a PCB and includes built-in safety protections such as overload and short-circuit protection. With its isolated design, low noise output, and wide input voltage range, the HLK-5M05BL is ideal for IoT devices, home automation systems, embedded projects, and industrial control applications where space and reliability are important.