Some chargers for plug inserted against the direction does not work please change the direction of the use of plugs.
· This product is negative ground vehicles, dedicated, positive ground vehicle will be allowed to use.
· DC12V-24V allied to the use of vehicles.

• Universal DC to AC Outlet Converter Adapter Plus USB outlet [US Plug]
• Converts DC power outlet into an AC power outlet (with DC power) for small electronic appliances
• Just plug this inverter into any 12 volt DC power outlet, like those found in cars, RVs, or boats
• Intelligent sensor checks the output/input compatibility with your electronic devices. 
• LED lights indicate when the converter can power the device If LED light does not illuminate, disconnect the electronic device from the converte