The BK Precision 1682A220V Fixed Voltage High Current DC Power Supply, 13.8V/12A, 220VAC Line Input has a regulated output of 13.8V, which is the same voltage as an automotive electrical system when the engine is running and the battery is charging. At this fixed voltage level, the 1682A-220V can provide 12A continuous, 15A peak output current. This output is ideal for powering most automotive accessories removed from the vehicle. Built-in protection against overload, short-circuit, and reverse polarity helps prevent damage to equipment and reduce risk of shock.