These are new and improved fans, now with ball bearings for long life and higher speeds for increased airflow.
- 40 x 40 x 10mm
- 24 volt
- 1M leads
- Ball Bearings for long life
- 9.1 CFM @ 9000 RPM, 6.1 CFM at 6000 RPM *
- 30dBA noise @ 9000RPM, 22.6dBA @ 6000RPM
* Please note that many fans available on ebay and other sites may list much higher CFM rates for similarly sized fans. We buy from a reliable supplier who quotes tested, real world CFM rates, and these are among the highest airflow possible in this size fan. Any numbers you see that are more than slightly above this are unrealistic and unattainable.