1. High Conversion EffIciency:Made of polycrystalline silicon solar cells, the solar panels adopt multi-layered cell to convert the natural sunlight to useable electricity.With up to 20.5% of high conversion efficiency.2. USB Smart Charging Technology:USB output: 5V / 2A (max), For Smartphones, tablets,GPS, digital cameras Charge.3. Portable Solar Panels:Foldable design, 13W portable solar charger is suitable for camping, riding, , rock , any external activity. You can also it in the backpack through the attachment when walking.4. Plug and play: plug and play, easy to use, even for inexperienced beginners, you can also quickly connect.5. Purpose: It can be slowly to meet the needs of some low-power electronic . Great for outdoor work, travel or camping.Product name: solar folding charging panelSingle crystal solar panel: 13WOutput voltage: 5VCurrent: 0-2.5A (intelligent voltage stabilization)Output interface: dual USBUnfolding size: 345 x 243 x 2MMFolding size: 243 x 85 x 30MMWafer: A monocrystalline siliconConversion rate: 20.5%Waterproof : IPX6Features: ultra-thin, high waterproof, lightweight, fashionable, dust-proof, scratch resistantcolor:BlueMaterial:ETFEPackage Contents:1 x 13w solar folding charging bag2 x Mountaineering buckleOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.