It is a Adapter/Power Supply Module/Regulator/Adjustable Converter. Input voltage: DC 8~35V. Output voltage: DC 1.5~24V adjustable. Output current: 5A MAX, recommended:below 5V,4A long-term; 6-9V, 3A; 10V-15V,2.5A. Application: DIY Power adapter, industrial equipments, electronic equipment, Communications Equipment, Power Tools, Car Driving Recorder, Car GPS, Car audio, LCD TV, Advertising screen, LED lights, Fan, intercom and monitor system, etc.