Feature 1It is waterproof, can be used in rainy days.High efficiency and high conversion rate. 2Extremely thin and light weight, easy to carry, little pressure on the object. 3It can charge multiple brands of mobile phones/ electronic devices, no longer have to worry about the phone being out of power when going out. DC and USB interface for more purpose in outdoor activities. Features: It is waterproof, can be used in rainy days.High efficiency and high conversion rate. Extremely thin and light weight, easy to carry, little pressure on the object. It can charge multiple brands of mobile phones/ electronic devices, no longer have to worry about the phone being out of power when going out. DC and USB interface for more purpose in outdoor activities. Solar panels are flexible for surface mounting. Easy to install and convenient to operation. Our solar panels come with a 3M cable, which makes it easy to install anywhere. Specifications: Color:Black Material:Silicon+ABS Maximum power (watt): 20W Open circuit voltage:21.6V Operating Voltage: 18V Working Current:1.11A Wire Length:9.8Feet Package Weight: 571g Package Size: 45 * 29 * 3cm Package list: 1 * Charger Plate Package List 1 * Charger Plate