The Ecoflow “21W Solar Charger” is the environmentally friendly accessory for outdoor activities. Under optimal conditions the charger can deliver up to 21W of power, depending on the angle of the panels and weather conditions. The charger contains two USB ports, and is ideal for charging tablet, phone or watch. The product is made from waterproof material (IP64 rated), making it durable and easy to use. It was also designed as an envelope with internal pocket for cords, attachments and storage. Folded, the charger is small enough that users can put it into their bags.