Material: 1680D Polyester Output voltage: DC 3.5-8.4 and 12-20V(adjustable) Application: can charge laptop,camara,mobile Solar Laptop BagMaterial: 1680D PolyesterOutput voltage: DC 3.5-8.4 and 12-20V(adjustable)Application: can charge laptop,camara,mobile phone, ipod,mp3 Solar laptop bag