Check the listing for details. 10 inch Shutter Exhaust Fan Wall Mounted Attic Vent Fan Smart Programming. Condition: New. Listed at 94.81 USD. VEVOR 10 inch Shutter Exhaust Fan, Wall Mounted Attic Vent Fan with Smart Programming Variable Speed Temperature Control, 1000 CFM,EC Motor,Timer, for Shed,Garage,Greenhouse Ventilation Cooling,BlackElectrostatic CoatingSpiral Fan BladesWeather-Resistant BuildRobust HousingFlexible MountingBroad CompatibilityAirflow: 1000 CFM,Noise Level: ≤62 dB(A),Air Speed: 7.2 m/s,Temperature Rise: ≤70K,Item Model Number: HA-250ME,Item Dimensions: 12.36 x 7.09 x 12.36 in / 314 x 180 x 314 mm,Louver Opening Angle: ≥40-Degree,Net Weight: 7.94 lbs / 3.6 kg,Power: 30W,RPM: 1900 RPM,Main Material: Q235B Carbon Steel,Rated Voltage: 100–240V Wide Voltage Rain Guard: Shutters open when powered for ventilation and deodorizing, then close when off to block rain and small .