Solar charging for mobile phone and laptop backpack waterproof 1.Material of bag:polyester fibre 2Size of bag:470*330*100mm 3.Volume of bag: 25L 4.Solar cell: SUNPOWER 5.Efficiency of solar cell: 22%; 6.Power of Solar Panel: 6.5 w 7.Size of Solar Panel:155*302mm 8:Output of solar charger: 5V 1A It can use to charge mobile phone, digital camera, MP3\MP4\Ipad\portable devices etc 5V joggle electronic product