DC Motor Speed Control PWM HHO RC Controller 12V 24V 48V 40A 2000W MAX PWM Controller Module with Switch

The enclosure this board is supplied in is not a custom fit, the PCB is loose in the enclosure and the access holes for wires are awkward. It works and it's cheap but that's about it. I don't know if they're all like this but the one I received looked used, it was scuffed and had partial old stickers on it. Note that the knob is likely to be found inside the enclosure - I thought it was missing at first until I opened it just to see what it looked like inside. Inside wasn't much better, with a poorly mounted heatsink.

This is used to run the motor on my machine I built myself. The 1/2hp motor we're using made coil whine with the other controller we had on it, this one does not, meaning this one was properly wound comparatively. Will be ordering a few as backups as we inevitably introduce them to water and flour over time. Thermal testing: 1/2hp brushless at full speed under load for nearly 30 minutes only brought the controller to 28c with ambient at 24c. No fans. May attempt to build it into a shroud for permanent installation, I don't think the thermals will suffer as long as most of the vents are exposed. If anything less than common sense arises I'll modify this review.

I purchased this handy dandy speed controller for a heater fan controller. This device allows me( or you) to control the speed of the PC fan that is being used to heat the cab of my rzr. Just install a small high speed fan in the engine access cover and voila you can now control the amount of heat coming in from turbo/engine compartment. Works perfectly !!

Works great. I'm using this to power an airsoft AEP form a 3s lipo, for which it is overkill, but the size is perfect for a flashbang pouch. Case is cheap and snaps together but functional. I added small screws to secure the board in place since but this isnt necessary in a normal application.The unit will turn off then rotated all the way to the left. It has a small red surface mount led, but it's barely visible through the case.

We used this on a small DC submersible water pump to pump out of a 5 gallon potable water bottle. The pump pumped too much too fast. This DC Motor Speed Control allowed us to slow down the pump so water dispensing could be more easily obtained.