AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Dual Connector, for DIY Cooling Ventilation Exhaust Projects

I purchased this a while back, maybe over a year ago to keep a light cool. It works great and has never let me down. I run it 24/7 for probably over a year now. Keeps light temps from 108 to 82. Great quality

Love this brand, easy to setup and to use, worked out the box. looks nice, matte housing with a gloss faced nob matte sides comfy grip and feel. The nob turns smoothly, there’s no play, responsive, there’s no delay. Comes with mounting bolts and nuts and wood screws of nice quality, black coated matching the color of everything else. Lovely

This review is for the AC infinity 120 mm AC fan and controller. They are a perfect combination and as a bonus, the controller comes with cabling for 2 fans, so it can daisy chain at least 2 together. I needed mine to point in a specific direction, in my case, I use to help cool an air pump for my plants. This unit works perfectly and the frame I made for mine makes it even better. It's very adjustable now and real easy to adjust flow. I've been running it on the lowest setting and it seems to be right on. It's nice to know that there's plenty more power if I need it. If you need a fan that is durable, compact and versatile, this is it!!!

Use to control two high RPM AC Infinity muffin fans used in a chicken coop for fresh air. Works great and offers good modulation of the fans. Can’t complain at all. Good product so far, in an austere environment (a dusty coop in AK temperatures).

I bought two AC Infinity fans for a cooling system I built into my tv stand. They move a lot of air, but they are loud when plugged in directly to an outlet. This module allows you to adjust speed and get the cooling you want, at a desired speed/sound level.

Love the fans. Tough, well made and perform well. I ordered the 1238 (120 X 38 mm) and paired it with this controller. It makes a resonating hum that carries clearly across the room. Yes, it varies the fan speed and airflow. For the money, I should have just bought a low speed version for about the same money and not have the teeth gritting resonance. Would NOT buy again.

I had purchased an AC Infinity Fan with a fan speed controller about 8 months ago. The fan worked great, but the controller did not work very well. The fan only turned on at about the 60% mark and would not run at slower speeds. Finally, the controller stopped working all together. I purchased another AC Infinity Fan with fan speed controller to replace the first one. The speed controller that came with the new fan has been redesigned in works perfectly. It worked so well that I purchased a dual controller and am now using both the old fan and new fan with the newly designed dual controller.

It doesn't always turn off when you turn the dial off. on those occasions I just unplug it. It also makes erratic jumps try turning it up a little same speed, move it father then full blast can be annoying, It also feels quite flimsy. But when its not acting up I can be in the same room without having to adjust everything else for the volume. I got to buy a knew one when it's acting weird itgets hoy to the touch, Thats just a fire waiting to happen.

Used it to control the pitch (frequency) and speed of my Axial 1238. Works perfectly and has the bonus of being able to control another similar fan at the same time (plugs in serially).

Excellent, exactly what I was looking for.

Works great, makes tuning multiple fans a breeze.(pun intended)

Bought this since I had tow of their fans and needed something to control them. The speed controller is great and is easily enough to install. The only downside is that it does not come with a temp probe which would have made it and absolute must buy in my eyes. Other than that, it is very useful and I use the controller everyday..

It works smoothly at low speed through to full speed.