... : Electronic energy-saving fluorescent, incandescent, small television sets, car refrigerator, etc.Socket type: Model MKM-500W Input DC voltage ... Output voltage, Frequency, Socket type, Protection functions(Low battery voltage, over battery voltage, lack-voltage alarm. Protections:short circuit, overload, ... do my best to help you. 500 watt 12 volt DC to 220 volt AC inverter, Power Inverter, Inverter