Features： 1、SOLAR CHARGING: The charger uses sunlight to charge the device and the efficiency of light absorption depends on the light strong and the angle of the light. 2、EFFICIENT CONVERSION: Efficient solar energy conversion, stable voltage panel, foldable design, more convenient to carry. 3、USB PORT: The Solar panel output port is USB and can be used to charge a smartphone, tablet or any other 5V device. 4、WATERPROOF: The Portable solar panel has a sturdy PVC rain cover and waterproof design with rain protection for camping, hiking and more. 5、MULTIPLE PROTECTION: Solar panel has overcharge protection, overvoltage protection, overcurrent protection, overpower protection, short circuit protection, temperature protection, overload protection, reverse discharge protection and static protection Specification： Item Type: Solar Panel Material: Polyester, PET, PVC Power: 21W Voltage: 5V, 9V 12V Current: 3A, 2A, 1.5A Protocol: DCP, QC 2.0, QC 3.0, MTK PE1.1/PE2.0, SCP, SFCP Fast Charging Protocol Number of USB Ports: 2 Applicable Devices: Mobile Phone, Tablet, Mobile Power, Camera Package List： 1 x Solar Panel 2 x Hook 1 x Instruction Book