The Pure Sine Wave High Frequency Solar Inverter 3000VA 24Vdc 60A MPPT Solar Charger With LCD Display GeTX . GX-VPM-3000VA is a high-performance inverter that can convert DC power from batteries or solar panels to AC power. It has a power output of 3000VA and a voltage input range of 24 volts DC. The inverter also features a pure sine wave output and a built-in 60A MPPT solar charge controller.