Sprout's Solar Charger is here to provide a clean and renewable way to charge your devices. It's built with a foldable design for portability and optimised solar capacity. Durable Nylon housing with built-in pockets to protect each panel and create a dust-free environment. SUNPOWER(r) panels are water and corrosion resistant. Charging control and cut-off technology has been built into the Foldable Portable Solar Charger to ensure safe charging. iSolar technology intelligently detects the sunlight intensity optimise current conversion to achieve maximum power.