These solar panels are designed to charge portable battery packs with a USB Micro charging port. You can then plug into the battery pack your phone or other device using the USB port and charge both during the day using the solar panels. Using an adaptor to charge a device directly will not work. For best results, use a rechargeable battery with the USB Micro port and keep with the solar panel. Dimensions: Panels: 13Watt, .97 lbs, 13”x12” (open)