Renogy EFlex Portable Solar Panel 21W

With an energy conversion efficiency of up to 22%-25%, Renogy E.FLEX 21 Portable Solar Panel utilizes sunlight and transforms it into usable electric currents for powering your essential electronics. Latest iSolar technology and auto-optimization functions are integrated to provide a safe and effortless charging experience. Optimized Charging Advanced iSolar technology enables the fastest charging speed possible and protects your device from over heating. Highly Efficient Utilizes sunlight to the maximum extent with premium solar panel and adjustable nylon kickstand. Top-notch Quality Water-resistant and rugged nylon offers great durability to conquer unpredictable weather conditions. Effortless Reconnecting Auto-optimization function guarantees immediate reconnecting when sunlight returns after charging interruption. Portable Size Foldable design for portability in backpack, tote and suitcase for outdoor activities.