F-Dorla Solar Panel Charger Regulator Controller 10A/12v/24v Safe Protection Ce Certify Easy to set up and operate. Suitable for small solar energy system. Prolong the battery life cycle and keep the load work well. Under-voltage and over-charging protection. Protection from lightning strike. Overloading & short-circuit protection. Reverse diacharging & reverse-polarity protection. Automatically manage the working of solar panel and battery in solar system.