10V-60V PWM DC Motor Governor,Stepless Variable Rotary Switches Electric Control Panels 12V 24V 36V 48V Pulse with Modulator Waterproof Shell

Works good. Controlling my fan speed in my greenhouse is essential and the speed options are perfect. My husband is an electrician so I can't say how easy it would be for others.

This product looked like it would do exactly what I needed to control the speed of two fish bait tank motors and for a reasonable price. When the controller arrived I was very pleased with the look and size of the product. I hooked it up to the 12V battery using the included electrical plug end and then plugged the unit up and the electric motors came on immediately. I knew then there was a problem since I had placed the switch in the off position before hook-up. I then tried to adjust the speed using the dial and it did nothing to change the speed of the 12V motors. I was very disappointed in the fact this item didn't work at all. I will be returning this item soon for a full refund unless the company is willing guarantee to send me one that will work as described. It really looked like the perfect solution for my water flow rate concerns.

Works great. I bought a second one too for my train setup.

Be careful , Wire inlet are so tight wires can easily touch each other.

Bought 2 but only one works But the one that works, works grea! I’ll buy another one to replace the one that don’t work

Tal y como lo esperaba gracias

I bought one and it worked fine. Bought a second one for a second pump and it failed on full shortly after the purchase. So when you turned it on it was just a on off switch. The plug in connection makes change out easy if you have to swap units. While my 10 amp unit has worked considering stepping up to 20 amp for a huge safety factor and maybe not a quick failure.

I purchased this to control the speed on some 50mm computer type fans I am using to keep my nano reef tank at a constant temperature. I didn't want the fans running at full speed due to the noise level. This unit was SO EASY TO USE. Just input the power in the clearly marked locations & the output (fans) it the other locations. Plug your 12V DC power supply into the wall & adjust the speed with the dial. Couldn't be easier. Great Product. I purchased another on to control another set of fans.