The renowned ebm-papst range of fans is based on experience gained from decades of development know-how, millions of units in series production, and the innovation competence of a world-wide technology pioneer. Most incorporate the world-famous ebm-papst external rotor principle where the fan blades are directly attached to the external rotor motor. Voltage - Rated 115VAC Size / Dimension Square - 80mm L x 80mm H Width 38.00mm Operating Temperature 14 ~ 167°F (-10 ~ 75°C) Noise 34.0 dB(A) Power (Watts) 11.00W RPM 3200 RPM Termination 2 Wire Leads High product quality Can be operated at 50 or 60Hz Sturdy construction Terminal power connection IP20 protection rating