Osram Battery Charge Solar 20W Foldable Solar Panel. Efficient, portable, and eco-friendly, the Osram Battery Charge Solar 20W Foldable Solar Panel is your ultimate companion for staying powered on the go. Designed for outdoor enthusiasts and professionals alike, this compact solar panel harnesses the sun’s energy to charge small electrical devices effortlessly. Mono crystalline solar panels in a robust outer case. Ideal for off grid power for charging small electrical devices such as mobile phones, tablets and laptops. Easy set up, fully unfold and point at the sun: Folding solar panel for charging small electronic devices. Provides up to 20W of free solar power to charge small electrical devices. Maximum power (@Pmax): 20W; Output USB-C: 5V, 2.4A; Output USB-A: 5V, 2.4A. Water resistant and robust durable construction for long life. Includes convenient integrated stand. Works best in direct sunlight but can work in sufficient daylight in overcast conditions.