... you increase the stability of the inverter, it reduces its costs3.Output voltage AC:110v, 220v, 230v, 240v,360v (optional) 4.With ... %220v±3%220v±3%220v±3%Output inversion frequency50hz±1%50hz±1%50hz±1%50hz±1%DC voltage12V24V48v48VO/P waveformpure sine wavepure sine wavepure sine wavePure sine ... load,high-voltage,reverse polarity protection and low-voltage protection pure sine wave inverter 110V