speed controller

Evening, wondering if anyone could help - I have a 5” inline exhaust fan and when it’s running direct to the mains it is silent except for the sound of the air movement, which isn’t an issue. However, I only need the exhaust on low most of the time and when I use a cheap speed controller it...

i have been looking at a 7.5 amp variac speed controller for a 10 inch 4250m3 6amp 550 watt tornado box fan shown in the picture its to powerful for my needs so its either a speed controller to lower the speed or buy something different like 10 inch isomax something like that..anyway Has any...

Hello, I recently bought a variac fan speed controller which I have wired and installed a single socket onto today. The problem is when I went to take off the speed controller built into the wire of my fan This fan, its the 200mm version with 3 speed control...