At Suntactics, we&＃39;ve been perfecting portable solar technology for years. Discovering new and better ways to build the ultimate portable solar charger by using high efficiency, high quality material in our pursuit towards perfection. We have travelled around the world and consulted many adventurists to put our solar panels to the test, our panels have been to the highest, coldest mountain tops, to the hottest low-altitude environments, they have been dropped in arctic fishing holes, ran over with trucks, shot full of holes, left in Middle East dust storms, dropped off steep rocky cliffs, and the panels still worked as intended.