PWM DC Motor Speed Controller, DC10-55V/40A Max 60A Stepless DC Motor Speed Controller with Forward-Brake-Reverse Switch Adjustable Potentiometer and LED Display,Continuous Current 40A

This controller was a surprise to me. The controller included a fwd/rev switch with center off position , a potentiometer to control the motor speed, and an LED display. Wasn't sure what the LED would display since it was not connected to any feedback from the motor shaft. It seems that the display indicates the percentage of drive to the motor. It is an electrical number that doesn't really indicated motor speed. Zero percent on the display indicates that the motor is off, 100% indicates that the full power of the controller is delivered to the motor. Very functional product and a good purchase for small motors. Recommended.

This is a great little Speed Controller, I am using it for a vintage Wooden Rolling Massager that I bought that originally had an AC motor with only one speed, it made a world of difference being able to adjust the speed and direction of the drum. I am powering it with this nice 24 volt power supply and so far has been fantatic. https://www.amazon.com/gp/product/B07VRK86SP/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 I plan on using one for my drill press in the future, you can't go wrong at such a low price, the components seem to be good quality.

I was very proud of the way my trolling motor controller turned out. I tried it on the bench and it was fine in forward and reverse and speed control worked fine. I took my new boat out to try everything in the lake and as soon as I powered up the controller the motor started turning in the forward position relatively slow. The the potentiometer would not slow it down or turn it off and the forward-off-reverse switch did nothing. I heard a pop and disconnected it. After returning home I could smell the burn and can see where two of the solder traces on the back of the board show burn signs. I will be looking for a better PWM, this one is garbage and I never got to use it.

I am using this device to control a 1/2 horsepower 12V DC motor via a microcontroller. Consequently, I have removed the potentiometer, the direction switch, and the on/off switch, and replaced them with a digital potentiometer, two relays for direction, and one relay for on/off. It works very well after I discovered that there are no diodes across your 2 motor controller relay coils (to absorb the kickback voltage when the relay is de-energized). I used a couple of MBR735 diodes for this purpose, soldered to the bottom of your pc board, and now it works well. Before I realized the missing diodes, I blew out a couple of digital potentiometers. Overall, however, it as a very good product at a very reasonable price. DAB 9/28/2021

I broke out the speed pot and the fwd/neu/reverse switch to a handheld, and keep this in the battery box to control the speed of a trolling motor for my kayak. I have this on a small motor but it works great no issues I can go all day on a 12v 6ah lifepo4 batt with one finger control. Keep that on the down low the man sez u are supposed to register a yak with even a rubber band motor f the man.

Unit arrived with cover dented. I straightened it myself. Workmanship of the circuit board is lacking, for example, components not mounted square, both horizontally and vertically. The potentiometer, switch, and display are permanently attached with maybe 6 inches of wires, They are 26 awg, making splicing difficult. The input terminals do not match the markings on the cover!! Pay attention to the terminal designations in the picture, as they are the closest thing to a schematic that it comes with. I would say it's a hobbyist grade unit. I needed something quick to get my customer going. I'll be interested to see how long it holds up.

It worked great for dyi trolling motor control but the instructions aren't clear

I got like 2 minutes of run time and it started clicking on and off. Unplugged and plugged in the battery and it just quit working. Took a closer look in the morning and noticed something burned out on the inside. It's pretty cheap and I already have the mounting figured out so I'll get another and see if this one works.....