7 Plugs Converter (DC/DC 11-28VDC to 12VDC 6A)Run all kinds of 12V devices from a truck or bus 24V supply. Simply connect to a cigarette lighter socket in your truck for a regulated 12VDC output at up to 6 amps, more than enough for a portable DVD player, TV or any other 12 volt device. You can also use it to run a DVD player from your car's 12 volt supply, as many portable DVD players will only run on a regulated 12 volt supply and will self destruct if connected to the typical 13. 8 volts of a