💦 Waterproof Onyehn Control Regulator Modulator Review

I bought this to control the speed of some computer style 50mm fans that I use to keep the temperature constant in my nano reef aquarium. I didn't want the fans to run at full speed because of the noise level. This device was so easy to use. Just enter the power in clearly marked places and the power (fans) in other places. Plug the 12V DC power adapter into the wall and adjust the speed with the dial. Couldn't be easier. Good product. I bought another to drive a different set of fans.

This product seemed to do exactly what I needed to control the speed of two baited aquarium motors, and at a reasonable price. When the controller arrived I was very pleased with the look and size of the product. I hooked it up to a 12v battery with the included plug, then plugged in the unit and the electric motors started straight away. I then knew there was a problem as I had flipped the switch to "off" prior to plugging it in. I then tried adjusting the speed with the dial and it had no…

Bought to fix a trolling motor that was missing controls. Connected to a 3 position rocker switch so I can rotate the prop clockwise or counterclockwise (forward or reverse). When I flipped the rocker switch to reverse, the propeller spun at full speed no matter where the speed switch was set (even to "off"). When I flipped the toggle switch forward, the propeller didn't turn at all unless the speed dial was on an 8 or higher. It hit its "top speed" (nowhere near as fast as reversing) at about…