Solar cells convert solar energy into free electricity. A multifunctional solar panel with a USB port can charge your various mobile phones or other electronic devices. Safe, reliable and energy-saving monocrystalline silicon solar cells can offer a wonderful new charging experience. Features: [USB Output] Energy saving solar panel with convenient USB port, suitable for power bank and mobile phone. [Portable] USB solar panel is lightweight and easy to carry for camping or other outdoor activities. [Convenient Charging] You can put the panel under the sun and charge your cell phone, MP3 and PC directly. [IP65 waterproof] Environmental and waterproof solar panel with long lasting material provides a long lastingservice life. [Durable] The solar cell is surrounded and protected by a durable epoxy board structure. Specifications: Power: 2W; 5W (optional) Material: monocrystalline silicon Colour: white Process: EVA lamination Working voltage: 5V Output current: 0-400mA (2W), 0-1000mA (5W) Output port: USB Operating temperature: 0 to +60 degrees Celsius Occasion: power bank, cell phone, etc. USB cable length: approximately 50cm/19.68 inches Product size: 15.7*9.4cm/6.18*3.7 inches (2W); 20.5*14cm/8.07*5.51 inch (5W) Package size: 16*10*2cm/6.29*3.93*0. 78 inches (2W); 20.5* 14* 2cm/8.07* 5.51* 0.78 inches (5W) Package weight: 55g/0.12 lb (2W); 98 g/0.21 lb (5W) Package List: 1 * Solar Panel Note: This product has no electricity storage function and can only be used during sunbathing