Sun YOBA 60A 12V 24V Solar Charge Controller with USB Port Solar Panel Controller Solar Regulator Simple visible LCD display shows live parameters of power system, monitor and check system status. 12V 24V auto switch, and automatically break off when the battery is not sufficient to power loads, make sure battery will not drain off. A key to open and close the load and restore the factory settings. Integrated multiple protection against overcharge, over discharge, over load, short circuit and reverse polarity, safely protect your battery. With USB 5V charging (for 500mA) for mobile phone(Not suitable Apple iPhone 5 5G)