It is a 20W Dual-way Output Adjustable Regulator/Power Supply Module/Adapter. Input voltage range: DC 5V~40V ( Input voltage must be at least 1.5V higher than output voltage.). Output voltage range: DC 1.25V~35V, dual-way output , each output can be adjusted separate and they will not affect the other. Output current: 2.5A at long-term operating, 3A (maximum). Application: DIY Power adapter, Laptop Power Supply, industrial equipments, electronic equipment, Communications Equipment, Power Tools, Car Driving Recorder, Car GPS, Car audio, LCD TV, Advertising screen, Monitoring System, LED lights, Fan, intercom and monitor system, etc.