That's great - sounds like a 12V version.
Always check the codes on the Comair Rotron fans, there is
quite a range from ~200-300cfm - and noise varies even more.
The main comments are re PWM, and simplifies to:
o If using a PWM solution try a fan with it before you buy more
o Realise you may have to try several fans re "PWM growl"
o Realise just because one doesn't work, doesn't mean all will not
o Use a high PWM frequency for easier fan+PWM compatability
That's it :-)
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