PWM DC Motor Speed Controller, DC 10-55V / Rated 40A, LED Display Stepless DC Motor Speed Controller with Adjustable Potentiometer and Forward-Brake-Reverse Switch

FWD REV switch failed second use . i can still get motor to go FWD but not reverse . Not sure if it's a controller problem or the switch that went bad . for now i'll live with the FWD only but will end up replacing this with a better motor controller .don't want to buy just a switch if the problem is the controller. Edited to note that seller is stepping up and sending a new controller . I't good to know they will reach out after the return date and give a solution

Smooth Speed Control for a Power Wheels Upgrade Used this PWM DC motor speed controller along with the DeWALT battery adapter to upgrade my grandson’s Power Wheels, and it works exactly as I hoped. It lets me dial in the speed so the extra power from the 20V battery doesn’t turn the car into a rocket, giving a nice smooth takeoff instead of a hard jerk. The knob makes it easy to fine‑tune top speed for different ages or surfaces, and once set it holds that setting reliably. Wiring was straightforward for a basic 12V system, and everything has been running cool and consistent. For projects where you’re adding more power and want control and safety, this is a solid 5‑star add‑on.

We have purchased three different DC controllers for this project. The first two were from China and rated at 30 amps. They both got very hot and failed at 10 amps. We subseuently purchased this controller, which was more sophisticated and had nice remote controls and a speed or percent power indicator. This one is rated at 40 amps, whereas our application required 12 amps, so we intended to run it at about 30% or rated output. At 12 amps, this one also got hot but didnot burn out. We reduced the running amperage to 10 amps and the device did not reach a failure temperature level. We will build this unit into our product but reduce the rating to maximum of 15 amps rather than the published 40 amps. The controls and indicator are very well done.

Works great. You have to wire it with good components to have it last a few seasons on a boat.

Used 3 times approximately 2 hours total. Unit over heated then shut off. Waited a half hour reconnected battery, turned it on and when I started to turn the dial up it started to sizzle and smoke now it's fried and just passed the return window. This is also my second time purchasing this same item and the last one did the same thing but was within my return window so was able to return it as defective.

I bought this to run to electric fertilizer pumps for my planter so I could adjust the voltage for my flow. It is rated more amps than my pumps are pulling. I have put at least 80 hours on it and it’s still working good. This was way cheaper than spending $850 on a kit from a sprayer place that doesn’t have the amperage capacity

Simple forward and reverse motor control. I found the rocker switch was not suitable for my needs so changed to two separate momentary push button switches. I didn’t use the ‘turns digital readout’ as it’s not got a ‘retained’ memory, it goes to zero if switched on or off. So I didn’t know where I was in rotation terms.

Only worked for a very short time then quit

switch failed, came apart after very little use

These are so much cheaper than expected and works just like the expensive ones.