UF-300BNA23H1C2A FULLTECH External Rotor Axial Fan Ø398mm ,Size Ø398mm,Rated Voltage(V) 230 V,Frequency(Hz) 50/60 Hz,Input Power(W) 150/200 W,Rated Current(A) 0.9/1.2 A,Locked Current(A) 1.6/1.56 A,Speed(RPM) 2650/2950 RPM,Maximum Air Flow(m3/min) 40.6/45.7 m3/min.,Maximum Air Flow(CFM) 1435/1615 CFM,Maximum Pressure(mmH2O) 31/29 mmH2O,Maximum Pressure(InchH2O) 1.2/1.1 InchH2O,Noise(dB) 75/78 dB,Weight(g) 4500,Bearing Ball