Product information: Solar panel power: 13W Solar cells: polysilicon Solar panel size: 305*250*3mm Solar panel working voltage: 5V Solar panel open circuit voltage: 6.6V Solar panel short circuit current: 2.4A (Max) Output Port: Dual USB Product features: Integrated 5V voltage regulator module Product use: charging 5V devices such as mobile phones and action cameras Features: 1. High-efficiency polycrystalline silicon solar cells. 2. Equipped with dual USB output interface. 3. Life waterproof, suitable for outdoor use. 4. Comes with 2 carabiner, can be attached to the backpack through 4 eyelets. 5. EVA is integrally formed, which can be used for a long time even in harsh environments. 6. Can charge 3.6V-5V electronic products/mobile phones/batteries. Packing list: 1 x Solar Charging Pad 2 x carabiner