GearIt Solar Charger, Foldable Compact 11W 5.5V Efficiency Solar Panel Portable Charger with Dual USB Ports High-efficiency solar panel constructed of SUNPOWER solar panels. Compatible with your iPhone, Android device, GPS, GoPro and more, this solar panel enables charge speeds of up to 2 amp (2000mAh) under direct sunlight. The 11 watt 5.5V SUNPOWER solar array is 22-23% high-efficient which provides enough power to charge two devices through dual USB ports at once. Ultra lightweight (1.14 pounds) and ultra compact (6.7  11.6in folded or 19.7  11.6in opened). Perfect charging pack to bring anywhere there is Sun. High quality waterproof nylon for weather-resistant outdoor durability. Well-placed loops allow easy attachment to backpacks while hiking. Package contents: GearIt high-efficiency 11W solar panel, 1ft Micro USB cable, carabiner clip, specs sheet. 100% Satisfaction Guarantee