It is a Power Supply Module/Power Converter/Controller/Voltage Regulator/Adapter. Input voltage range: DC 6V~62V. Adjustable output voltage range: 0~60V (input voltage should be greater than output voltage). Adjustable output current: 0~5A. Output power: 0~300W. Suitable for DIY an adjustable voltage regulated power supply, Industrial equipment Voltage convert, Power Supply Transformers, Laptop Power Supply, Batteries Buck, Car Power Supply etc.