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

This definitely get the job done and the cords are of sufficient length. I had to deduct two stars though for two issues. First, the mounting is a pain as the mounting hole in the side tab is a bit small. Definitely too small for M6 screws if you're mounting it to the side of a side rail. I was though about to use a 10/32 screw and just widen the plastic hole a bit. My other complaint is that the matching AC Infinity fans buzz on anything but high. I kinda expected this but was hoping this premium product line could overcome that issue. Yes I understand why it buzzes.

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!!!

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.

Poor quality. How can they sell two products made to fit together that don't? Either the fan terminals are too big or the speed controller ones are too small. If I keep this I'll have to take a file or something to the fan terminals to get them to fit the controller plug. If I had other options, I'd just return it and buy from somewhere else. Nice going AC Infinity. As for the controller, it works so far.

Unit has been in operation for about a month controlling an Affinity fan. Has done an excellent job and most importantly is not generating any heat or overheating.

For two fans works great but really don't need it, their fans are so silent you don't have to lower the speed, but this item is well made and works perfectly.

Mountable and small controller, but not to small. Cord needed to be 6 feet long, spliced in longer cord and bingo. Using these for exhaust fans on a 6 foot aquarium canopy.

Using this to operate two fans on my RV and it works as advertised. The adjustability is nice and operates the fans flawlessly.