Features 1Portable solar panel kit for charging MP3 phones mats or other controlled devices. 2Dual female USB ports you can easily charge the device through the USB charging cable. 3Flexible photovoltaic system suitable for outdoor cycling mountaineering hiking camping tourism etc. 4You can put the panel in the sun and use it to directly charge the device in an emergency. 5Suitable for car batteries RVs ships airplanes satellites space stations outdoor breeding etc. 6High conversion efficiency good output efficiency low light efficiency easy to carry strong applicability. Specification Item Type: Solar Panel KitMaterial: MonocrystallineWeight: Approx. 956g / 33.7ozProduct Size: Approx. 28x28cm / 11.0x11.0inController Product Size: Approx. 13.3x6.8x3.5cm / 5.2x2.7x1.4inController Working Current: 20AMaximum Power (PMAX): 15W x 2Short Circuit Current (ISC): 1.1AOutput: USB 5V DC18VFeature: Without power storage functionScope of Application: Car batteries automobiles RVs ships airplanes satellites space stations outdoor breeding planting tourism solar street lights. Package List 2 x Solar Panel1 x 1-to-10 USB Cable1 x Connecting Cable4 x Suction Cup2 x Buckle1 x 1-to-2 Cable1 x Adapter Cable1 x Clip1 x Controller2 x Chinese and English Manual Note 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.