It is a 60W Car Adapter/Power Supply Module/Voltage Regulator, Input voltage: DC 24V (17~35V), Output voltage: DC 12V, Output Current: 5A, Application: Power adapter, 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.