R5-0.7~3K-S1 is a single-phase on-grid solar inverter of a single MPPT. It is designed for residential solar systems in the rooftop PV sector, helping customers enjoy solar energy comfortably and efficiently. High efficiency and reliability of this inverter guarantee a better user experience. Though light & compact, its maximum efficiency of R5-0.7~3K-S1 can still reach 97.8%. R5-0.7~3K-S1 inverter is also featured with 1.1 times overload and 1.5 times of DC input, which increase the power generation of the solar system. A without-external-fan design keeps this inverter operating at a low noise level, providing a comfortable user experience.