This series is a new generation of multi-functional and intelligent solar charge and discharge controllers. The innovative structured design makes the installation and use of the controller safer and more reliable. The optimized charge and discharge management greatly improves the service life of the battery. At the same time, the large LCD display screen contains richer display content, the patterns are beautiful and easy to understand, and the streamlined display management maximizes the display of the system's working status and corresponding parameters. A variety of control parameters can be set to meet a variety of different application requirements.