20W Solar Panel Wall Exhaust Fan

Product Description   Multi Purpose Solar Gable Ventilator, Serves Well Everywhere A self-contained axial flow type solar wall fan, taking advantage of natural solar energy, to allow savings of up to 100%, and suit all kinds of building installation; it would pump out the interior stale air and excessive heat to improve indoor air circulation, reduce moisture & harmful mildews, and help reduce the load on air conditioning and HVAC systems both in Summer & in Winter.   It's of the highest efficient & quiet ventilation, by top grade IP68 waterproof brushless DC motor. It's also of the easiest installation and no dependence on AC grid, while always freshens air for various premises especially attic, gable, basement, even those crawl spaces at no cost, serving as a most natural ventilation solution for your healthy and comfortable living space! Benefiting from 18V DC low voltage, it’s also a safer product to protect your safety b