... 30Wp,40Wp. Specifications:1.AC 220V,110V,DC 12V.2. USB power output.3. Different capacity: 40Wp,50Wp,60Wp,70Wp,80Wp ... It is composed of solar panel ,lithium power battery, intelligent controller & inverter.2. Aluminum alloy box .3. LCD displays the state of ... the battery capacity,load power,charge current and voltage. ...