Wagan 2200 Elite 180W Pure Sine Wave InverterWagan Tech® Elite™ Pure Sine Power Inverters convert 12V DC power into 120V AC power that is identical to your home (commercial) electrical power—in true sine wave form. Compared to the traditional inverters, which output in modified sine wave, AC power in pure sine wave form will operate your electronics with cleaner, cooler, and quieter energy. Built-in short circuit and reverse polarity protection.