Sun YOBA Solar Charge Controller Solar Controller 30A 12V 24V Solar30 Visible Interface: Simple visible LCD display shows live parameters of power system, monitor and check system status. Intelligent: 12V 24V auto switch, and automatically break off when the battery is not sufficient to power loads, make sure battery will not drain off. Ultra Safe: Integrated multiple protection against overcharge, over discharge, over load, short circuit and reverse polarity, safely protect your battery. Temperature compensation: automatically adjust the charge parameters of battery by environment temperature to prolong the service life of battery. Easy Installation: easy to set up and operate, suitable for home, industrial and commercial etc.