... Reverse polarity protection. 12V DC-AC Car Power Inverter with USBDescriptions:The Power Inverter DC-AC1, Rated Power: 100W2, Peak Power: 150W3, Input Voltage: 11 ... -15V DC4, Output Voltage: 100V/110V/220V/230V/240V5, Output Frequency ... : DC15V-16V10, Low Voltage shutdown: DV10V-11V 12V DC-AC Car Power Inverter with USB