I got 2 120mm switch adjustable fans and ducting. I’m using it as an exhaust fan in my tear drop camper. The installation is not complete yet. But It’s all coming together nicely and works well. I’m confident I will get adequate airflow in the hot summer nights to sleep comfortably.

I ordered three of these fans (multi speed with switch) and they are just what I needed. I actually needed only two but expected the third to be a spare. Unfortunately one did not function (possibly my fault) so I have the two really needed. Still happy with the situation as is and well satisfied.