Advanced Maximum Power Point Tracking (MPPT) technology, tracking efficiency of at least 99.5%, highest conversion efficiency of 98%, about 25% higher than the efficiency traditional PWM charging. Automatic identification of 12/24VDC system voltage, support different types of batteries such as gel batteries, sealed batteries, flooded batteries, lithium batteries and other battery charging procedures. The solar charge controller provides overcurrent, short circuit, reverse connection, low voltage and overload protection, making it a reliable protector for your devices. The intuitive LCD display shows clearly display the status and data, and can switch between modes and configure parameters. Visual fault display allows the user to easily identify system faults. Two USB ports allow users to directly charge mobile phones and other electronic devices, and can be purchased to support the Rs485 protocol model, to meet the communication needs of different occasions.