Fangrui Product Details Intelligent System Voltage Recognition: Automatically Identifies 12v/24v/48v System Voltage.36v Needs Manual Setting User-friendly Lcd Display: Friendly User Interface With Three-key Operation, Simple And Convenient. Efficient Intelligent Pwm Three-stage Charging: Optimizes The Charging Process, Enhancing Battery Life. Multiple Load Control Modes: Supports Night Street Light Timing Function And Selectable Load Control Modes. Comprehensive Protection: Offers Over-voltage, Short Circuit, Overload, Overcharge, And Over-discharge Protection. Accurate Temperature Compensation: Automatically Corrects Charging And Discharging Voltage, Further Extending Battery Life. Reverse Connection Protection: Comprehensive Protection For Positive Connections Of Solar Panels, Batteries, And Loads. Reasonable Design: Common Positive Design For Solar Panels, Batteries, And Loads, Ensuring System Stability. Battery Voltage: 12v/24v/36v/48v 4* Usb 5v/2a Charging Ports Charging Current: 60a Max Solar Input(voc)15-25v(12v Battery