Standard Square Axial Fan Fan Shape Square Mounting Eye O.C. 3 1/4 in Height 3 5/8 in Depth 1 17/64 in Width 3 5/8 in CFM @ 0.000-In. SP 78 Watts 6.7 Voltage 12V DC Electrical Connection - Fans Lead Wires Sound Level 50 IP Rating IP20 Mounting Position Universal Bearing Type Ball 4350 RPM Motor Insulation Class E Max Ambient Temp 158 Degrees F Blade Material Fiberglass Reinforced Plastic Housing Material Fiberglass Reinforced Plastic