Made of high quality materials, durable Model: 350W, 500W, 600W, 700W (optional) IP65 waterproof design (installed at the bottom of the solar panel) Communication data monitoring screen. Built-in high performance Maximum Power Point Tracking (MPPT) function Aluminum alloy. Supports single-phase or three-phase connection. High precision phase detection; overvoltage and undervoltage protection; overfrequency and underfrequency protection; island protection. Specifications: SG350: Number of Input Connector: 1 set MPPT Voltage Range: 24V-40V Operation Voltage Range: 18V-50V Maximum Input Voltage: 50V Startup Voltage: 18V Maximum InputPower: 300W Maximum Input Current: 14A Rated Output Power: 295W Maximum Output Power: 300W SG500: Number of Input Connector: 2 set MPPT Voltage Range: 24V-40V Operation Voltage Range: 18V-50V Maximum Input Voltage: 50V Startup Voltage: 18V Maximum InputPower: 2250W Maximum Input Current: 210A Rated Output Power: 495W Maximum Output Power: 500W SG600: Number of Input Connector: 2 set MPPT Voltage Range: 24V-40V Operation Voltage Range: 18V-50V Maximum Input Voltage: 50V Startup Voltage: 18V Maximum InputPower: 2300W Maximum Input Current: 212A Single-Phase Grid Type: 120V & 230V Rated Output Power: 590W Maximum Output Power: 600W SG700: Number of Input Connector: 2 set MPPT Voltage Range: 24V-40V Operation Voltage Range: 18V-50V Maximum Input Voltage: 50V Startup Voltage: 18V Maximum InputPower: 2350W Maximum Input Current: 214A Rated Output Power: 650W Maximum Output Power: 700W Package Contents: 1 Grid-tied inverter (optional) Notes: 1. Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the website picture. Please allow a slight deviation between the data and the manual measurement. Please kindly note that. Also, the each additional item means. The the same color and size. Transit time may be a little delayed because of the. If you have any questions.