Features: Brand 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 during charging, enabling high charging efficiency with detection and two-way focusing tracking. Large LCD display with adjustable charging and discharging parameters. Supports wide range of adjustments for charging and discharging settings. As long as the battery characteristics and corresponding charging parameters are known, it can be used to charge the battery, with output turned off when needed. Timer can be adjusted in minutes or hours for 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 is cleared without damaging the controller. Specifications: Material: Fireproof shell + 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 errors 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