Standard Square Axial Fan Fan Shape Square Mounting Eye O.C. 3 1/4 in Height 3 5/8 in Depth 1 1/2 in Width 3 5/8 in CFM @ 0.000-In. SP 86 Watts 9 Voltage 12V DC 0.75 Amps Electrical Connection - Fans Lead Wires Sound Level 55 IP Rating IP20 Mounting Position Vertical or Horizontal Bearing Type Ball 6800 RPM Motor Insulation Class E Thermal Protection Electronic Max Ambient Temp 158 Degrees F Blade Material Fiberglass Reinforced Plastic PA