Specifications for this AC cooling fan The AC cooling fan Size: 80 * 80 * 25mm AC cooling fan Working Voltage: AC110V(85V-110V) AC220V(190V-250V) AC380V Current: 0.04 0.14A Frequency: 50 60 (Hz) Power: 15.2 19 (W) Speed: 2300 2800(RPM) Air flow: 17 22(CFM) Pressure: 3.0 4.5(mmH2O) Noise: 29 34 (dBA) Weight: 230 (g) Certification: CE ROSH SGS CCC ISO9001