Our company sticks into the basic principle of "Quality is definitely the life of the business, and status may be the soul of it" for 30w solar roof ventilation axial flow fan, , , ,. We guaranteed quality, if customers were not satisfied with the products' quality, you can return within 7days with their original states. The product will supply to all over the world, such as Europe, America, Australia,Cairo , Montpellier ,Ireland , Sao Paulo .We are increasingly expanding our international market share based on quality products, excellent service, reasonable price and timely delivery. Please contact us at any time for more information.