1. 30A MPPT solar charge controller featuring advanced MPPT technology with up to 99% tracking efficiency. This controller detects the maximum power point by optimizing charging current—not by boosting voltage or automatically adjusting panel voltage. 2. Multi-function LCD display for intuitive system monitoring. Automatically recognizes 12V or 24V battery systems. Always connect the battery first, then the solar panels. Ensure the battery has sufficient voltage during initial setup for proper system recognition. 3. Comprehensive protection: overvoltage, short circuit, overload, overcharge, and over-discharge protection. Continuous MPPT tracking during charging ensures high efficiency and stable performance. 4. Industrial-grade microcontroller with 16-bit AD sampling for precise measurement of temperature, charging current, discharging current, and real-time power generation display. Note: Always connect the battery before connecting the solar panels. Reversing this order may cause malfunction. Specifications: Weight: 322 g Dimensions: 8.9 × 4.3 × 2 cm Material: Plastic Includes: 1 × Solar Charge Controller