500W power inveter, over/low voltage shutdown protection, Car Power inverter , modified sine wave USB port, full output power, High Transform efficiency, fast start ... 24V/48VDCOutput volt:110V/220VACOutput waveform :Modified sine waveOutput power:500W Function details ModelMK-500M-121MK-500M-241MK-500M- ... WaveEfficiency85%88%90%85%88%90%DC input voltage range10.5-15V21-30V42-60V10.5-15V21-30V42-60VLow ...