Specification:Pmax20WUSB Output Voltage18VMaterial-PanelPET Laminated Sunpower Mono-crystalline CellsMaterial-BagNylonColorCamouflageExpanding size430*260MMFolding size430*130MM Features:1.Eco-friendly & durable material.2.Applied in charging 18V device as a power bank.3.Portable, foldable and ligh..