Sun YOBA Solar Controller Solar Regulator 5A 12V 24V CMTP02 Easy to set up and operate.Suitable for small solar energy system. Use single-chip microcomputer as the core of the whole control system, which makes the controller has the advantages of intelligent, strong adaptability, reliable function etc. Always keep the battery on fill voltage condition. Also prevent the battery from over-discharging. Automatically manage the working of solar panel and battery in solar system. Reverse Polarity Protection for Battery,Prolong the battery life cycle and keep the load work well.