The modified sine wave inverter is a type of power inverter that converts direct current (DC) from a battery or solar panel into alternating current (AC) for powering household appliances and electronic devices. Unlike a pure sine wave inverter, which produces a smooth and consistent waveform similar to grid electricity, a modified sine wave inverter generates a stepped or “modified” waveform that approximates a sine wave. This makes it a more affordable but less refined option for power conversion.