Features: Industrial-grade main control chip with 16-level AD sampling accuracy. Temperature, charging current, and discharging current are accurately displayed in real time, providing clear power generation monitoring. MPPT auto-focusing technology for efficient solar tracking and charging, featuring high charging efficiency, real-time detection during charging, and two-way focusing tracking. Large LCD display with adjustable charging and discharging parameters. Offers wide range of adjustable settings; as long as battery characteristics and corresponding charging parameters are known, it can be used to charge the battery with output control. Timer functions for minutes and hours provide added convenience. Complete three-stage charge management system to effectively protect the battery and extend battery life. Built-in protection against overheat, overcurrent, short circuit, and reverse connection. Automatically resumes operation after fault conditions are resolved without damaging the controller. Specifications: Material: Fireproof shell with aluminum plate Voltage: 12/24V auto-detect Current: 30A/40A/50A/60A/80A/100A Size: Approx. 168 x 95 mm (6.61 x 3.74 inches) Note: 1. Please allow 1-2 cm variation due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the image may not reflect the actual color of the item. Package includes: 1 x Solar Charging Controller