DZS Elec 10A 12V-40V DC Motor Speed Controller 12V 24V PWM Variable Speed Regulator Governor Switch CCMHCN With Speed Control Knob

As expected

Didn't handle the high amp

Used this to replace a bad wire feed motor driver board on a Harbor Freight Mig170 welder. I secured the old board out of the way with wire ties as it has other circuitry on it that still works. I installed this board using the potentiometer nut in the original hole. I installed a 24vdc power supply (240vac rated) to the pains terminals and wired the output in series with the trigger wire. It fed wire perfectly and brought the welder back to operation. I did add some hot glue to support the board and prevent it from touching anything. It is nice that it has a heat sink to keep it cool as the original one did not. Great little board and appears to be well built.

This is a great dc-dc controller, 12-24volt 10amp max. It worked great for my Halloween props controlling windshield wiper motors.. 👍

These work really well, my only complaint is that the knob needs to be run through a panel as the only thing keeping it attached is solder. otherwise electrically pretty durable, i’ve accidentally shorted one a bunch of times and it still works with no issues. great price

Work's good in my project.

I like to play with projects, and I created a leaf blower out of an old vacuum motor. This controller helps me soften the enormous speed of the vacuum motor. Works great, wide range, recommended.