This smart vent 100 is a solar powered extractor fan which is a self contained solar ventilator which helps reduce build up of heat and condensation in confined areas as well as removing odoursr r it provides active silent and secure ventilation ideal for greenhouses boats caravans and conservatories the smart vent 100 is powered by an integral crystalline solar panel and it can be fitted to most surfaces including polycarbonate glass wood and metal and also features a strong acrylic c