Intro：
1. It adopts full-digital double closed loop control, combined with advanced SPWM technology to output pure sine wave. 2. Two output modes: mains electricity bypass and inverter output; uninterrupted power supply. 3. Four charging modes: PV Only, Mains Electricity Priority, PV Priority and PV&Mains Electricity hybrid charging. 4. Advanced MPPT technology with 99.9% efficiency. 5. User-defined charging parameters setting(voltage, current and mode), and suitable for various types of energy storage batteries. 6. Rocker switch for AC output control. 7. Power saving mode, reduce no-load loss. 8. Intelligent variable-speed fan to efficiently dissipate heat and extend system lifespan. 9. Lithium battery activation function, allow lead-acid battery and lithium battery access. 10. All-round protection for solar panels includes overload and short circuit protection, under-voltage and over-voltage protection and reverse polarity protection. 11. Support variety of user-friendly