RioRand RR-PWM-15V Low Voltage Dc 1.8v 3v 5v 6v 12v 2a Motor Speed Controller PWM

The product did what it was supposed to do. The hookups are marked well and I like the compactness.

Worked fine. Did not come with mounting washer/nut. I used four pan head m3x4 screws to mount in my DIY Rotary tool.

Ordered these to control 2 small brushless axial fans. Works great. Wide range of adjustment and screw terminals hold tight.

I broke down a portable water flosser and used this to create a wall mounted water flosser that didnt rely on batteries or a water tank. This unit provided the adjustable motor speed which translated to variable pressure at the head so I didn't saw my teeth in two. This controller really tied my project together, but i noticed that periodically the voltage spontaneously drops without adjusting the knob. This resulted in drops in pressure then a sudden hard jet straight to the Uvula.

Work great

These little fan controllers work well for managing fan speeds of typical computer fans. I originally bought some of these a while ago to manually adjust the fan speed on my PS4 and have since used them to make little table top fans from pc fans that I've salvaged. They are PWM controllers with a built in potentiometer to make any fan variable speed.

Worked for a day, then the knob stopped powering it on and off and slower faster. It was stuck in ON, FASTEST mode. Will try a different kind of speed controller. This also gets REALLY hot VERY quickly. I burned my finger. My connected adapter was 12V going to a wiper motor.

a good enough product, would work well for a fan or a light, but wouldnt work for me because i needed to knock down the voltage to a fuel gauge because grounding issues made it impossible, instruction and limitations which there were none, would have came in handy