I wrote:

>...delivering 12W 1W running :)

Meant of course 12V 1W...

Tomorrow I will add another nozzle of same size in the straight opposite side.
This wil make approx total 2W, but brobably not increase the noise as much as it would with one big nozzle.  The fan have odd nomber of wings so only one fan blade will be hit with an airblow each time; same noise amplitude, but double frequency (if same rpm).  Butt the ssssss white noise from the nozzzzzles will be doubled of course.

/Morgan