500watt solar inveter,over/low voltage shutdown protection, Car Power inverter,modified sine wave USB port, ... waveformModified Sine WaveEfficiency85%88%90%85%88%90%DC input voltage range10.5-15V21-30V42-60V10.5-15V21-30V42-60VLow ... ±0.5V24±1V48±2V12±0.5V24±1V48±2VOver Voltage Recovery14.8V29.5V59V14.8V29.5V59VProtective FunctionLow/Over voltageLED Red light, ...