Quote Originally Posted by invision
i have a 600CFM cage fan, its blows way too much air and is noisy as hell, is there a easy way to make one of perhaps even something i can buy fully working out the box?

i read a few times due to the wire wrapping in the motor that a controller can eventually render the fan uselss, anyone have experience with these?

its sounds like a tornado when plugged in and thats just isnt going to work at all.
Many, if not most, electric motors are better off if run at full power. Running them at less than full power decreases their useful life. Since your fan now has, essentially, no useful life (because you can't use it), does it really matter how much you decrease its useful life, as long as you can use it?

Any "dimmer" switch will control the rpm's of your fan. However, you are better off to buy a controller designed for a ceiling fan. These types of switches START (turn on) at full power then decrease. (What is really bad for a motor is to start it on less-than-full power.)

I've been researching fans for a grow box I just built. Fans are available in just about any size and speed you want. The basic rule of thumb is to calculate the volume of your grow room (length x width x height) and get a fan that will allow for three air changes per minute. You can google "in-line fans" and find anything you want - including all the stuff you need to hook it up.

Good luck!!!