Description This Solar Battery Charge Controller automatically manages and regulates the voltage and current going into the battery from the solar panel, and itand 39 s designed with short-circuit protection, open-circuit protection, reverse polarity protection and over-circuit protection in order to ensure that the batteries are not overcharged. Features - Color: Black- Size: 13.4x7x3cm- Material: ABS.- Rated current: 30A.- Working voltage: 12V or 24V.- Adopt industrial microcontroller for stable operation.- LCD display for easy controllingcharge and discharge.- Made of material for long lasting use.- Dual MOS anti-backflow circuit, lowheat productivity.- Provides over-current, open circuit protection, and short circuit and reverse connection protection.Packing list: 1 x solar controller Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.