Solar powered attic fan system roof vent fan for attic or greenhouse 400cfm exhaust fan blue

Features: Weatherproof design quiet cooling wind up to 500 sq ft 400 CFM for sheds boats or attics. Powered by completely free solar power no need to use home power automatically when the sun shines. The casing is coated with a black anti-rust paint and is designed for long-term outdoor use in all weather conditions. Easy for you to attach the fan to any wall or roof. The fan is very suitable for working in small spaces with enhanced exhaust air to effectively reduce indoor temperature such as shed chicken house greenhouse etc. Specification: 100% brand new with high quality Solar Panel: 100W Space: 500 Sq ft Air-flow: 400CFM Material: Metel Shell Size: 280*280*40mm Package Included: 1 x solar roof vent