Portable solar panel compatible with portable power supply BN-RB series. Even in environments where electrical outlets cannot be used, you can use sunlight to clean, portable power source, charging your smartphone, or power your USB devices. When used in combination with our portable power supply, it can be used for a wider range of uses and longer power supply. Foldable for easy carrying. Operation confirmation models: BN-RB10-C/BN-RB6-C/BN-RB5-C/BN-RB3-C/BN-RB62-C/BN-RB37-C