Four foldable solar panels can reach a max 4.5W output in direct sunlight, tripling the solar power that you can get from a single panel charger. It can be attached to your backpack to get free solar energy when you are hiking or folded up to a compact size for easy carriage. Product Specification 1.Capacity: 20,000mAh 2.Material: PC+ABS 3.Input: 5V-2A 4.Solar Input: 5V-1A 5.Three Output: USB1: 5V/2A USB2: 5V/2A USB: 5V/1A 6.Wireless Charger: 5W 7.LED Light Mode: SOS+3Levels of brightness Power Button Instructions 1.Short Press: Turn On wireless charger 2.Double Short Press: Turn On/Off LED lights 3.When light is on, Short Press:Change the light Pricing based on sea freight.