Specifications: Size: 150* 150 * 50mm Working voltage: ac110v(85v-110v)/ac220v(190v-250v)/ac380v Current: 0.10/0.43a Frequency: 50/60 (hz) Power: 38/59.4 (w) Speed: 2300/2500(rpm) Air flow: 150/190(cfm) Pressure: 11/13(mmh2o) Noise: 52/54 (dba) Weight: 950(g) Certification: ce rosh sgs ccc iso9001 Packing: each one with one white box or as the customers' requirment Material: Frame: : aluminum alloy with plastic-spraying/p. B. T Impeller: plastic p. B. T. Coil: enamelled copper wire Motor: shade pole induction motor Bear type: ball bearing/sleeve bearing Lead type: wire lead /terminal Performance: Insulation resistance: 10mat 500vdc between lead and frame Operation temperature: -20c~80c Dielectric strength: 1 min at 1500vac/50-60hz, current