... Different capacity: 40Wp,50Wp,60Wp,70Wp,80Wp.The portable solar power system is designed to supply electric power ... as camping .Features:1. It is composed of solar panel ,lithium power battery, intelligent controller & inverter. ... of the battery capacity,load power,charge current and voltage.4. AC 220v,110v, DC 12V ... from the short circuit,over-load and over-discharge,the indicator will faults happen.