1 Pcs 3-phase Three-Phase DC 7-24V Brushless Hallless BLDC Motor ESC Speed Controller with Potentiometer

the one I got had a button instead of potentiometer and was low speed and half the time didnt work

The controller operates smoothly, though as stated in the product description it gets very hot. So far I've used this for a few months and had no issues with it.

I bought this to control a BLDC motor designed for drone airplanes to operate in a blower. Testing it at 9-11V (well within motor spec) from a bench supply able to supply up to 6A, it started behaving eratically above 1.5A, suddenly tripping overcurent protection in the power supply and then rapidly switching between braking and accelerating the motor a few times before entering a shutdown mode. This was with the pot very low.Trying a beefier PSU, the ESC just immediately burned itself out and no longer operates.

I made the mistake of removing the extension wires from this device and soldering my plug directly to this device before testing. The motor would barely turn them it would fail. The heat sink is just an aluminum plate and there is not sufficient thermal tape to cover all of the amplifiers.I have another one that was a different listed item from Amazon and it is still running great. It has a finned heat sink - not all are constructed the same.

Bought this to test an electric motor I hand built with 3d printed parts. I didn't have much expectations, but to my surprise the ESC worked perfectly and the motor spun to life at an alarming speed. Very handy.

The second I connected to a 12v power source it went up in smoke

Works as intended with 24v or less. I over volted to try to spin a larger motor and it did work for a few moments. Just trying to prove the wiring and motor were sound. Stay with in parameters and it is flawless.

The media could not be loaded. Works as expected. Now i have full control over my CPAP blower. Don't worry I use the blower for my Magnetic IDEX 3D printer :)