The HF series series are pure sine wave high frequency off-grid inverter with three main functional modules, including MPPT photovoltaic controller, AC charger and inverter; the inverter adopts high frequency design, with high power density and volume, small size, simple operation, high efficiency of the whole machine, low no-load loss and so on. It is widely used in household systems, communication base stations, monitoring systems, pastoral areas, and 5G auxiliary power supply.