Versatile AC Motor Speed Controller - 100V-120V, 15A Max - Electric Fan Speed Regulator with Overload Protection, Electronic Voltage Regulation, and Voltage LED Display

Works great for what we needed it for, no complaints at all. I was given a speed controlled belt sander for Christmas and by the time I went to use it, it was too late to return. Needless to say, the speed control on it didn't work and it accelerated to the point that I thought it was going to take off and explode in the process! Crazy! Glad I thought to look up this little AC Motor Speed Controller on Amazon, because it works perfectly! I just plugged this into the wall and then an extension cord into the speed controller, then hooked up the sander. Hooray, now I had it going at a reasonable speed with no exploding. : )By the way, the belt sander is from Harbor Freight; n.e.v.e.r. again! Read the reviews on the sander, almost half of the people had the same problem. Glad I was able to save it before it went up in flames. Thank you Versatile for selling this handy little gadget.

Perfect, just ehat I need to control revolutions on my angle grinder.

It's great. Does what it says it does and what I expected.It's only issue is the knob. It made it about 3 weeks before it cracked internally and no longer stayed on. Still works and you can replace it with generic one, but it is a downside.

Works well and seems to be well constructed using quality wiring and plug

Wanted to use this controller to reduce fan speed and operating noise. The controller reduced speed, but made MORE noise than fan on medium setting without controller in circuit.

GOOD PRODUCT

Works well. Hasn’t stopped working!

This controller adjusts the voltage supplied to a motor. That is not a true speed controller. A true speed controller adjusts the voltage to maintain a motor speed. For a fixed load it can adjust the motor speed correctly such as a fan.