Features: 1. Monocrystalline Silicon Material: This foldable solar panel is made of premium monocrystalline silicon, which is lightweight and sturdy, long service life. 2. Easy to Use: Just face the solar panel towards the sun. With 1 USB charging port to charge the device, and the charging efficiency depends on the size of the sunlight. 3. Excellent Performance: High conversion efficiency, great output efficiency, low light efficiency, light weight, easy to carry, strong applicability. 4. Foldable Design: Using advanced production techniques, this solar panel charger has a foldable design that can be used anywhere, convenient to carry outside. 5. Application Scenario: This solar penal charging bag is perfect for camping, hiking, backpacking, horseback riding, fishing or other outdoor activities. Specification: Item Type: Portable Solar Panel Bag Material: Monocrystalline Silicon Weight: Approx. 314g/11.1oz Folding Size: Approx. 19x9cm/7.5x3.5in Expansion Size: Approx. 53x19cm/20.9x7.5in Power: 50W (without storage function) Interface: 1 x USB interface Package List: 1 x Portable Solar Panel Bag 2 x Buckle 1 x Specification Features Premium Monocrystalline Silicon Material: Crafted from lightweight and durable monocrystalline silicon, ensuring a long service life and reliable performance. Easy Solar Charging: Simply position the solar panel in direct sunlight and utilize the USB charging port for convenient device charging, maximizing efficiency based on sunlight exposure. High Efficiency and Portability: Boasts high conversion and output efficiency, with low light performance and a lightweight, foldable design for easy portability and versatile use. Foldable Design for Convenience: Utilizes advanced production techniques to offer a foldable design, enabling convenient use in any location and effortless outdoor portability. Perfect for Outdoor Activities: Ideal for camping, hiking, backpacking, horseback riding, fishing, and various outdoor activities, providing reliable solar power on the go.