Used to charge MP3 phones, pads or other controlled devices. Dual female USB ports, you can easily charge the device through the USB charging cable. You can put the panel in the sun and use it to directly charge the device. Suitable for outdoor biking, mountaineering, hiking, camping, traveling, etc. Product Name: solar panel kit Waterproof rating: IP65 Conversion: 23-24% size:282x280mm Material:Monocrystalline silicon colour:Black Package Contents: 1 x solar panel 4 x suction cups 1 x alligator clip 1 x charger 1 x 50A white + green solar controller 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.