Introducing our Solar-Powered Low-Profile Warm Air Extractor Fan: Our brand-new, sleek, and ultra-low profile extraction unit operates in near silence while efficiently extracting 950 cubic feet of air per hour. It's designed with a large and highly efficient solar panel that doesn't require direct, intense sunlight to function optimally. With a diameter of 200 mm and an astonishingly low profile of only 25 mm, this extractor offers a discreet and streamlined appearance. Installation is a breeze – simply use a common 82mm (or larger, if desired) hole saw to create an opening, place the provided waterproof rubber gasket around the hole, insert the vent body, and secure it by hand using the substantial plastic nut. No nuts, bolts, or drilling are needed, making the installation process hassle-free. Experience the benefits of ultra-quiet operation and straightforward setup. When exposed to ample sunlight for the first time, the extractor will activate within 20 seconds, automatically initiating warm air extraction. On partly cloudy days, this vent incorporates built-in capacitors to temporarily store energy, adjusting the fan speed to a slower setting if necessary until full sunlight returns. During overcast spring or summer days, the vent operates intermittently, cycling between 20 seconds of operation and 20 seconds of rest to maintain its charge. Versatile and suitable for various applications, including garden sheds, greenhouses, toilets, roofs, gables, campers, caravans, and wall or roof installations. ***Please note that this extractor may not function effectively in low-light winter conditions due to reduced lux levels.