Koral 15W Solar Portable Charger - 15W 2-Port USB Solar Charger for iPhone X, 8, 7, 6, iPad, Kindle, Samsung Galaxy & More (Black) Features sun power solar panels which provide industry leading solar Conversion efficiency Intelligent charge technology ensures your Device gets the fastest charge possible while safeguarding you with voltage and over-charge protection Designed to be durable and weather resistant with PET laminated solar panels Integrated into a tough, Industrial strength Fabric Portable and light-weight, its easy to attach to your backpack or simply fold it up and go Includes a Koral 12-month limited warranty