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SAFETY PROTECTION AND CIRCULATION SYSTEM The fan is equipped with a double layer metal protective net to prevent injury to your hands and small animals as well as the normal operation of the fan blades. Cooling and Ventilation The solar panel fan can push out the heat and push the cold in, effectively lowering the indoor temperature and maintaining freshness. For small chicken coops, greenhouses, sheds, pet houses, window exhaust on hot summer days. Waterproof and Durable The solar panel is coated to avoid short circuit or damage caused by rain, and is suitable for outdoor use. The solar fan has no built-in batteries and can only work during the day. Green Energy with USB Port The mini solar panel fan effectively converts sunlight into electricity, has a long service life and is green energy. The solar panel can also be used as an emergency power source to charge your devices at any time. The output interface is USB+DC. Easy to Use The fan is powered by solar panels, easy to install, just connect the interface of the solar panel and fan, and then put it in the sun to use. The fan of the solar panel runs quickly in direct sunlight, and the fan of the solar panel runs slower or stops when the sun is weak. › See more product details