The Vent-Bettina rotational ceiling fan is thoughtfully designed with its arms gently upward curving. Offering fluid lines and quiet axial rotation, the motor fan heads can be infinitely positioned in 180-degree arcs for optimum air movement; the greater the angles of the motors to the horizontal support rods (up or down), the faster the axial rotation. A slow, controlled axial rotation is achieved by both fan head position and fan blade speed. Style : Contemporary, Transitional Lo Rpm : 699 Lo Cfm : 1346 Hi Rpm : 1101 Hi Cfm : 2077 Hi Watts : 89.63 Hi Cfm/Watt : 23.17 Amps : .52 Ftc Efficiency Pdfs : Vent-Bettina 12In Metal Blades_102717 Motor Speeds : 3-Speed Motor Type Ac/Dc : Ac Included Control - Standard Equipment : Wall Control Blade Material : Aluminum Number Of Blades : 6 Blade Pitch : 31 Degrees Downrod Included - Standard Equipment : 10" Downrod Od : 3/4" Origin : Brazil/Usa Features Matthews rotational fans circulate heat and air conditioning more efficiently than traditional paddle fans. Constructed of cast aluminum, heavy spun and stamped steel, ths fan carries a limited lifetime warranty. Each unique motor mount and fan head knob is made of genuine marbleized Bakelite. The following blade options are available: metal blades with decorative metal blade guards, solid, ecologically harvested Brazilian mahogany blades without blade guards and metal blades with metal safety cages for use in low ceiling applications (7 ft in US / 8.2 ft in Canada) Standard Equipment: Decora-style 3-speed wall switch in white. Standard Equipment: 10" downrod. **Optional: 20", 30", 48" or 72" downrods available. Downrods can be easily field cut; they are not threaded. Standard Equipment: Flat ceiling canopy. Compatible with 29 Degree vaulted ceiling canopy. Standard Equipment: White 3 speed Decora Style Wall Control Safety cages available for low ceiling applications. Damp location with powder or clear coat only. Not recommended for salt water/ocean front applications.