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. High product quality Noise 41.0 dB(A) Power (Watts) 11.00W RPM 3100 RPM Termination 2 Wire Leads Ingress Protection - Operating Temperature 14 ~ 149°F (-10 ~ 65°C) Can be operated at 50 or 60Hz Long service life Sturdy construction Terminal power connection IP20 protection rating