When the output voltage or current exceeds the protection value, the output be automatically turned off to prevent damage to the load. Built-in cooling fan with thermal sensor keep the power supply cool, reduce noise and extend lifespan. High , high reliability and perfect current limiting protection, thermal protection and voltage overload protection functions. Widely used in homes, laboratories, schools, equipment maintenance battery charging, etc. If the fuse is blown, you can replace the damaged fuse., Manufacturer: PokFhgur