The MUST PV2000 PK Series is an off-grid Low Frequency Solar Inverter with models ranging from 1KVA to 2KVA. It delivers a pure sine wave output and features a built-in 50A PWM solar charge controller. Users can customize settings, such as frequency and charge voltage, using the smart LCD. Key functions include a cold start function and comprehensive protection against overload, short-circuit, and deep discharge. The series has a peak inverting efficiency greater than 85\% and supports USB/RS232 monitoring.