Function: 1. Industrial-grade master chip, 16AD sampling accuracy, temperature, charge current, real-time accurate discharge current display. 2. Auto focus MPPT tracking charging, high charging efficiency, non-stop detection while charging, two-way focus tracking. 3. Large LCD display, all adjustable parameters. 4. Three-stage charge management, effectively protect the battery. 5. Built-in short circuit protection, open circuit protection, reverse protection, overload protection. Specification: Characteristics: Industrial-grade master chip, 16AD sampling accuracy, temperature, charge current, real-time accurate discharge current display. Auto focus MPPT tracking charging, high charging efficiency, non-stop detection while charging, two-way focusing tracking. Large LCD display, all adjustable parameters. Three-stage charge management, effectively protect the battery. Built-in short circuit protection, open circuit protection, reverse protection, overload protection. Two-way anti-moss tube backflow circuit, high-power charging mode, ultra-low heating. Specification: Material: ABS Color: as shown in the picture Options: 40A, 50A, 60A, 100A Battery voltage: 12V 24V Auto Solar panel voltage: solar panel 12V, solar panel 18V, solar panel 24V, 36V Float charge: 13.7V (default, adjustable) Discharge hold: 10.7V (default, adjustable) Reconnect discharge: 12.6V (default, adjustable) Self consumption: USB output: maximum 5V or 2A Package List: 1 x controller 1 x User Manual