It is a 1500W Boost Converter/Power Supply Module/Adapter/Charger, Input voltage range: DC 10V~60V, Output voltage: DC 12~90V continuously adjustable (default 19V), Output current: 20A MAX, Application: DIY Power adapter/Charger, industrial equipments, electronic equipment, Communications Equipment, laptop, Power Tools, Car Driving Recorder, Car GPS, Car audio, LCD TV, Advertising screen, LED lights, Fan, intercom and monitor system, PDA or a variety of digital products.