20a PWM Solar Charge Controller With LCD and Usb Ports

Automatically manage the working of solar panel and battery in solar system. Overloading and short-circuit protection. Build-in short-circuit protection, open-circuit protection, reverse protection, over-load protection. Protection from lightning strike. Prolong the battery life cycle and keep the load work well. Easy to set up and operate. Suitable for small home, industrial, commercial solar energy system etc.Rated Discharge Current: 20A; USB Output Voltage: 5V/3A; Battery Voltage: 12V/24V auto & Charge Current: 20A & Discharge Current: 20A