An inverter is a device that converts direct current (DC) into alternating current (AC). It is commonly used in various electronic devices and systems where the primary power source is DC, such as batteries or solar panels, but the application requires AC power. Inverters are essential for many applications, including powering household appliances, electronics, and other devices that operate on AC power, even when the primary power source is DC. The capacity of an inverter is expressed in Volt ampere.