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Intelligent design, simple structure, powerful control function, stable performance, safe and reliable products. Use high-quality imported components to ensure superior performance and stability. Using PWM stepless unloading method to control fans and solar cells to intelligently charge batteries. LCD Display: LCD display battery voltage and charging current, all parameters are visible when the user is using. Multiple Protection: Reverse solar charge protection, Battery open circuit protection, Battery reverse protection, Over-wind speed and Overvoltage, Lightning protection, Overload protection, etc.