Solar Panel Power 20W AC Output+Solar/AC Input USB to charge mobile ... Excellent Compatibility.Easy installation and simple and convenient use, portable carry-onLong lifespan, Low-cost, very economic.Guaranteed ... , Village, Country area, Camping ,Adventure Activity etcFeatures Solar power charge, easy to useLong working life, Li battery ... once in 3 months Ultralight Ultrathin Portable solar power system