All of our solar hats are handmade and assembled in the U.S.  We are proud to offer solar powered straw hats that work on 100% green renewable power. There is no battery needed. Our solar hats have a sun protection of UPF 50+.  There is a reason our customer rate our hats 5-stars year after year. To feel the benefits of our solar hats simply step outside under the sun feel the "kool" breeze.