[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] 5.5/6.5m3/min? Frequency ? 50/60Hz? Speed ? 2800/3250RPM?Air volume ? 195/230CFM? Noise ? 49/53dB? Weight ? 1.10kg[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