Feature: 1.High Efficiency Solar Panel:This 30W solar charger is made of A-grade polycrystalline silicon solar panel with up to 20% efficiency. This means you'll get more power and faster charging in the same sunlight conditions. 2.Folding Portable and Practical:This solar panel charger has 4 layers of folding, when fully folded, the size is 180*140MM, similar to a wallet. Also comes with 2 carabiner, it's really handy for traveling, hiking, camping and more outdoor activities. 3.Environmental Protection Energy Saving:No built-in battery, dual USB interface power output directly, no built-in battery to transfer power, directly supply power to electronic devices through the USB output interface, always reserve power, allowing you to travel outdoors without worry. 4.Wide Compatible:Can charge 99% of smartphones on the market, and can also charge cameras, power banks, lights, speakers and more USB rechargeable devices. 5.Excellent Service:If you have any questions about our products, please contact us, we will be happy to answer any questions about your order, and will also solve the problem for you as soon as possible. Specification: Name: 30W Solar Folding Charger Wafer: Grade A polysilicon Process: Laminated frosted board (anti-scratch) Colour: Black Maximum power: 30W Output voltage: 5V Current: 0-2A Conversion rate: 20% Output interface: dual USB Expanded size: 70x18cm/27.56x7.09inch Folded size: 18x14x3cm/7.09x5.51x1.18inch Box size: 20x14x4cm/7.87x5.51x1.57inch Weight: About 404g with box Note: Due to the different monitors and lighting effects, the actual color of item might be slightly different from the color shown on the picture. Thanks! Due to different measurement methods, there may be 1~3cm/0.39~1.18inch error.     Packages:  1 x Solar Folding Charging Case 2 x Carabiner