[Appearance size] 172*150*55mm[rated voltage] 230 V[rated current] 0.25 / 0.23A [Lock current] 0.43 / 0.37A? Input Power? 42/42W[Maximum air volume] 5.5 / 6.5 m3/min? Frequency? 50/60Hz? Speed? 2800/3250RPM? Air volume? 195/230CFM? Noise? 49/53dB? Weight? 1.10 kg[temperature range] -20 °C-70 °C[Product Certification] CE UL TUV certification is available[bearing structure] maintenance-free double ball bearing[Estimated life] L10 estimated life of 50, 000 hours at 25 °CApplication field Medical Rail vehicle Drive cooling Hotel Industrial cleaning Electronic product New energy vehicles SupermarketRegards for the Centrifugal/Axial fan, we have many differents models following for your reference, any your requirements, our group will try our best to serve you