12 Volt Heavy Duty 2-Speed Chrome Fan With Mounting Base - 21000 Fan; Ceiling Type; 7-1/2 Inch Diameter x 8-3/4 Inch Height; 2 Speed With High/ Low Switch; 180 Degree Rotation; 12 Volt DC; Chrome Plated Fan Guard/ Metal Blade; Clamshell Packaging 2-Speed High/Low Switch On Fan Base Ball Joint Construction Allows 180 Degree Rotation For Use In RVs, Buses, And Trucks