Description: solar cells convert solar into free electric energy. A multi-functional 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 give you a wonderful new charging experience. Features: [USB Ouput] Energy-saving solar panel with convenient USB port suitable for bank and mobile phone. [Portable]USB solar panel is lightweight and easy to carry for camping or other activities. [Convenient Charging]You can put panel under sun and charge your mobile phone MP3 and PC directly. [IP65 Waterproof]Environmental and waterproof solar panel with long-lasting material provides a long lifespan. [Durable]Solar cell is surrounded and protected by a durable epoxy board frame. Specifications: : 2W; 5W (Optional) Material: Monocrystalline Silicon Color: White Process: EVA lamination Working voltage: 5V Output current: 0-400mA(2W) 0-1000mA(5W) Output port: USB Operating temperature: 0 to +60℃ Occasion: Bank Mobile Phone etc USB Cable Length: Approximately 50cm / 19.68inch Product Size: 15.7*9.4cm/6.18*3.7inch(2W);20.5*14cm/8.07*5.51inch(5W) Package Size: 16*10*2cm/6.29*3.93*0.78inch(2W);20.5*14*2cm/8.07*5.51*0.78inch(5W) Package Weight: 55g/0.12lb(2W);98g/0.21lb(5W) Package List: 1 * Solar Panel Note: This product has no electricity storage function and can only be used while sunbathing