Description    Used to charge mobile phones, MP3s, pads, or other USB charging devices.  USB female interface, easy to charge the device through the USB charging cable.  You can put the panel in the sun and use it to directly charge the device.  Very suitable for outdoor biking, climbing, hiking, camping, traveling, etc.  Made of high-quality materials, environmentally friendly, durable and delicate. It has a high conversion rate.  Solar panels with USB interface to meet any of your requirements.  Environmental protection and pollution-free, realizing the conversion of solar energy to electric energy  It has a wide range of applications and can be used in many places, such as automobiles and small household appliances.  A solar panel is a device that directly or indirectly converts solar radiation into electrical energy by absorbing sunlight. Compared with ordinary batteries and rechargeable batteries, solar panels are more energy-efficient and more environmentally friendly.    Features    solar panel:  Comprehensive standard: 3.33  Voc:20V  Maximum voltage: 5V  Power: 220W  Maximum power: 2A  Output: 5V  Size: 430*200*2.5mm  Waterproof rating: IP65  Conversion rate: 19.6-20%  Number of USB ports: single  Material: monocrystalline silicon battery  Scope of application: bicycle, mountaineering, hiking, camping, traveling, etc.      Note:  - There might be little error of size for manual measurement.  - Due to different lighting effect and monitor setting, actual item's color may not exactly reflect color on pictures.    Packing list  Package Included:   1 x Solar panel   1 x Alligator clip cord   1 x Point car   1 x 60A controller   1 x 220W inverter(random colr:yellow/silver)