1Used to charge cell phones, MP3s, tablets or other USB charging devices.2You can put the panel in the and charge the device immediately.3Very suitable for outdoor cycling, mountaineering, hiking, camping, traveling, etc.4Portable Design: Small in size and light to take, it is easy to carry for camping or other outdoor activities. Easy to install with pre-drilled holes on the back of panels for fast mounting and securing.5Plug and Play: Built USB port in the solar panel, come with charing cable, fit most kinds of device, plug and play, avoide out unexpected off .Waterproof: Advanced water and dust proof level, complete protection against environmental particles and low pressure water jets.Solar Panel:Material: monocrystalline siliconSolar panel voltage: DC12VSolar panel : 300WTransformations efficiency: 20%Proof rate: IP65Item weight: 600gOpen circuit voltage (VOC): 5VShort circuit current (Isc): 3AOutput: USBNumber of USB ports: 2Solar Controller:Voltage: 5VMaximum supply voltage: 6VShort circuit current: 2AWorking temperature: -40+85Colour: BlueMaterial: Monocrystalline siliconSize: 43 x 20cmPackage Contents:1 x solar panel1 x 50A controller1 x One towing ten charging cable1 x charging cable1 pair x alligator clips4 x suction cupsOnly the above package content, other products are not included.Note: Light 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin