UF-250BMA23H1C2A FULLTECH External Rotor Axial Fan 280*280*80mm ,Size 280*280*80mm,Rated Voltage(V) 230 V,Frequency(Hz) 50/60 Hz,Input Power(W) 119/158 W,Rated Current(A) 0.52/0.71 A,Locked Current(A) 0.83/0.87 A,Speed(RPM) 2400/2600 RPM,Maximum Air Flow(m3/min) 29.8/31.2 m3/min.,Maximum Air Flow(CFM) 1050/1100 CFM,Maximum Pressure(mmH2O) 17.8/15 mmH2O,Maximum Pressure(InchH2O) 0.7/0.59 InchH2O,Noise(dB) 70/71 dB,Weight(g) 2800,Bearing Ball