Constructed to be incredibly rugged and durable, the Boulder 30 Solar Panel by Goal Zero is built with strong tempered glass and an aluminum frame for temporary or permanent installation for your hunting or ice fishing shack, RV or camping power needs. It's incredibly easy to use, too. Simply set it outside and the sun does the rest. Designed for use with all Goal Zero Power Packs, you'll have a full-powered cellphone, GPS, trail camera... you name it, all charged in no time. Connect directly into the USB port for quick and easy power. Plus, the Panel is lightweight and very easy to transport, so you can take it with you no matter where you go. The weather resistant design means even Mother Nature has to work harder to prevent you from getting your smartphone charged. Keep your electronics charged, without the hassle of a generator... use the sun.