PWM DC Motor Speed Controller, DC 10-55V/60A, LED Display Stepless DC Motor Speed Controller with Adjustable Potentiometer and Forward-Brake-Reverse Switch

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

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.

The product died right away, despite being rated for 60A. Wrong. Carefully attached the unit to a small 12V power supply and a small motor (max draw 5A at stall). Double-checked all polarities before final connection. Turned on the main switch, then the potentiometer, and -- zilch. Nothing. Nada. Checking the unit with a multimeter, it is clear that the switches all work, but something on the board is hosed. My schedule is now kaput. I really want my money back, or a working unit. Disappointed.

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.

I was really impressed with this item! It came with connectors and a couple little extras. After about 10 mins of setup, not only did it look slick, but, it functions EXACTLY as described! Just what I needed for my highbanker pump! For anyone here doing the a similar project: - (x1) Harmnee Controller - (x1) Prospector's Dream Bac-Pac series highbanker. - (x1) 2,000 gph bilge pump - (x1) 12v 20ah Dakota Lithium battery - Misc. roll of 16ga wire. I've run it in the bath tub for over an hour, at all different speeds. Haven't had a single hiccup! Taking it to the woods in two days for real world testing but, I imagine everything will be great!