The Solis S5-GR3P (3-20)K is a three-phase grid-tied inverter designed for small residential and commercial photovoltaic (PV) systems. Here are some key features; Efficiency, The maximum efficiency of the S5-GR3P (3-20)K is 98.7%. String Current, It supports string currents of up to 16A. Voltage Range, The inverter operates within a wide voltage range and has a low startup voltage. Smart Features, It supports export power control and offers connectivity options via RS485, WiFi, and GPRS. Safety and Protection, The inverter is IP66 rated, has AFCI protection to reduce fire risk, and features automatic voltage stabilization technology for weak grid conditions. Installation, The compact design allows for simple installation and maintenance. Models, The S5-GR3P (3-20)K comes in various models with different power ratings, ranging from 3 kW to 20 kW