The MUST PV3000 VHM Series is a line of economical Low Frequency Solar Inverter/Chargers ranging from 1KW to 6KW. It provides a pure sine wave output and features an inbuilt 80A MPPT Solar Charge Controller. The series supports 3-step charging and allows users to set both solar and AC priority for optimal system charging. Key customizable settings include the battery low voltage shutdown point (10V to 11.5V for 12VDC mode), inverter output voltage (220V/230V/240V), and frequency (50Hz/60Hz). It is capable of operating with all kinds of home appliances and supports Acid or Lithium battery selection.