The essence of Off-Grid Low-Frequency Inverter is an inverter. The first is to change the AC power to DC power. Then use electronic components to switch the Off-Grid Low-Frequency Inverter DC power.

Off-Grid Low-Frequency Inverter converts DC power (battery, storage battery) into AC power (usually 220v50HZ sine or square wave). In layman's terms, Off-Grid Low-Frequency Inverter is a device that converts direct current (DC) into alternating current (AC).