10V-60V PWM DC Motor Governor,Stepless Variable Rotary Switches Electric control panels 12V 24V 36V 48V Pulse With Modulator Waterproof Shell

Tal y como lo esperaba gracias

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

Used this controller on a DC fan @ 7.5 amps. Ran about 15-20 minutes before I could smell melting plastic. You get what you pay for here.

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

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

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.

Good

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.