It is a 15W Power Converter/Adapter/Power Supply Module, Input Voltage: DC 4.5~27V, Output Voltage: DC 1.3V~25V (step-down mode, the input voltage must be 2V higher than the output voltage), Output Current: 1.5A. Application: DIY Power adapter/Charger, 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.