... suit for travel, charging anytime and anywhere;3.Material : EVA+PU+ABS, durable;4. Super light sensitive solar panel, Monocrystalline silicon, 17 ... battery protection program, no worry of short-circuit, over-charging and explosion;10. With charge protection, stable output, over current ... on the quality of the sunshine. Pls adjust the position and angle of the product to make solar panel face sunlight ...