Features: Brand new and high quality industrial-grade main control chip with 16-level AD sampling accuracy. Accurately displays temperature, charging current, and discharging current in real time, providing clear power generation status at a glance. MPPT auto-focusing technology for efficient solar tracking and charging, featuring real-time charging detection and two-way focusing tracking. Large LCD display with adjustable charging and discharging parameters. Ultra-wide input compatibility; charging parameters can be adjusted based on known battery characteristics. Output can be turned off when needed. Adjustable timer settings in minutes and hours for added convenience. Three-stage charge management system to effectively protect the battery and extend its lifespan. Built-in protection against overheat, overcurrent, short circuit, and reverse connection. Automatic recovery function: controller resumes operation automatically after fault condition is resolved, without damage to the unit. Specifications: Material: Fireproof shell + aluminum plate Voltage: 12/24V 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 differences due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to variations in monitor displays, the actual color of the item may differ from the picture. Package includes: 1 x Solar Charging Controller