Low Frequency Off Grid Solar Inverter PV3500 PRO Series (4-12KW) PV3500 PRO series is a multi-function inverter ,combining functions of inverter and mppt solar charger controller, solar charger and battery charger to offer uninterruptible power support with portable size. The comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery charging current, AC/solar charger priority, and selectable input voltage based on different applications. Features: Smart LCD setting(Working modes, Charge Current, Charge voltage, etc. Built-in MPPT solar charge controller 80A/100A/200A MPPT efficiency max 98% Powerful charge rate up to 140Amp DC start &Automatic Self-Diagnostic Function WIFI / USB monitoring function with free CD (wi-fi optional) Supporting AGS, BTS port Compatible to generator