1. 30A MPPT solar charge controller featuring advanced MPPT technology with up to 99% tracking efficiency. This controller detects the maximum power point of the solar panel to optimize charging performance. 2. Multi-function LCD display provides intuitive system information. The controller automatically detects and adapts to 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 ensures high charging efficiency throughout operation. 4. Industrial-grade microcontroller with 16-bit AD sampling for precise measurement of temperature, charging current, discharging current, and power generation. Real-time data is displayed clearly on the LCD. 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 Package includes: 1 × Solar Charge Controller