... solar panel 1, portable solar film panel 2, apply for mobile phone, laptop, PC, camera, Mp3, Mp4 3, USB 4, outdoor thin film solar ... seasons, equipment and other factors TroubleshootingI, check the solar power panel and device connection. See operation schematic diagramJ, check ... diagrams, have relevant indication Maintenance instructions M, solar power panel is used in waterproof material and has a ...