Solar Panel Power 20W AC Output+Solar/AC Input USB to charge mobile phones,MP3/4 speaker,etc Long lighting time working ... lighting. It's used to provide electricity for lamps, laptops, mobile phones, TV, fans etc. USB to charge Mobiles, MP3, ... area, Village, Country area, Camping ,Adventure Activity etcFeatures Solar power charge, easy to useLong working life, Li battery replaced availableStability ...