... 80w Working voltage :18v(for 12v batteries)2)converter:in put DC 12v/24v,out put 110v/220v3.)charging controller ... :1).it can provides power for lighting and entertainment in remote area, such as lights,fans,laptop ,TV and ... so on .2).it can also be used in emergency ,such as family use ,back-up power for ... of outdoors performance. foldable solar charger/80w solar system for car/solar system