UF-250BMB23H1C2E 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) 0.59/0.82 A,Locked Current(A) 0.91/0.91 A,Speed(RPM) 2550/2700 RPM,Maximum Air Flow(m3/min) 31/32 m3/min.,Maximum Air Flow(CFM) 1090/1130 CFM,Maximum Pressure(mmH2O) 20/16.5 mmH2O,Maximum Pressure(InchH2O) 0.78/0.65 InchH2O,Noise(dB) 68/70 dB,Weight(g) 2800,Bearing Ball