1. Solar panel is used to charge mobile phones, MP3, pad or other devices with USB charging. 2. Dual USB female port, easily charge the device via the USB charging cable. 3. You can place the panel in the sun and use it to directly charge your device. 4. Perfect for outdoor cycling, climbing, hiking, camping, travel, etc. Product Name: solar panel kit Conversion: 18~21% Size: 411 x 200 x 2.5mm Colour: as shown Material: Polysilicon Package Contents: 1 x solar panel 1 x 10A solar controller 1 x Car charger 1 x battery clip 4 x suction cup Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.