ZK-BMG DC Motor Speed Controller, DC Motor Controller 9V-60V/12A/500W DC Encoder, PWM Control Adjustable Speed Variable Rotary Switch PWM Signal Generator Module

I already reviewed this but here it is again. My use case was to provide variable speed control to a 12v Kamado Joe smoker air blower fan motor. I selected this PWM unit because the exterior design would look almost "factory" on my blower motor housing. The terminal block is well labeled and robust. The dial is a digitizer which makes it a lot more flexible. When I first tested this set up, the controller was not linear, meaning the fan didn't turn on until the dial was set above 20% power. After that, the motor speed ramped up to 100% at a setting of 50% on the digitizer. That would have worked but i wanted a very fine linear control as air flow on a KJ is critical to stable temps. I corrected this by inserting a 4.7 ohm 25-watt resistor on the + fan lead. It now works perfectly. The motor starts at 1% and ramps up to full speed at 100% dialed power setting. My motor only draws 1.5 amps so the 12A capacity of this unit indicates major over engineering so it should last a long time.

I bought this for a small trolling motor and I had reservations, but it said that it could handle 12 amps and that is way more than the motor I had so I thought I would give it a try. It works great so far, I now have infinite speed control from 0-100 percent, though below about 15% the motor isn't actually turning anymore. I've been meaning to test if I'm losing any speed by bypassing it completely, but I haven't had a chance yet. it just seems that with the small wire size and how small the controller is that it must lose some output potentially, but it definitely has been working well for speed control. I can turn it down and just follow the shoreline at a crawls casting into potential spots as cruise along or set my trolling speed where it feels right, so I love it so far.

Have already been using it. Won't give 5 stars until it shows longevity and not a burn out . The cabinet it's mounted in includes a cooling fan so I don't think it'll ever over heat especially when only .9 amps as its only loading at the moment and that won't change unless the motor goes bad maybe? A lot less room needed than for other motor speed controllers which was a plus. Maybe not as much power handling as larger units but not needed for my application. Display is bright and clear and the units control pot is very responsive. The connection terminals are better than others and look good. CAUTION! The wiring sticker on this controller was not matching the actual board designated polarities. Someone was reading upside down. Just peel and turn around. So far a good value if it doesn't crap out for no reason. Don't know any reason it would. One thing that I wish the companies producing these small panel mounts would produce and offer, an angled bezel for tilting them upwards or downward for easily reading when high or low. For my application I don't mind squatting or bending down to read but is not always practical and at my age sometimes painful. As my application of them has me tilting them upwards on the panel face. Top edge of the included bezel is touching the face of panel face and the bottom edge is approximately .250 inches from the face of the panel. This request has no bearing on the unit itself or it's rating from me. Personaly I don't own a three d printer or these would be pretty easy to print. Bottom line is so far so good and nice.

I use it to lower wattage to a mostly-on solenoid. Before that thing got hot as h*ll but setting this controller at 80 fixes that.

The speed control device worked well until capacitor blue or something like that I don't know exactly what but I think maybe it's because of it was wet outside and just rain so just letting everybody know that yes the water will ruin it

Works as intended.

This proved super effective for adjusting the speed of a 12 volt DC motor. It connects to the power source and then to the motor using 4 clearly labeled slots that each have a screw to secure the wire. Very easy to install. The display is very clear and bright, easy to see. It also has a dial on it that lets you adjust the output from 0% to 100%. you can click the dial for on and off. This is an excellent means of controlling the rotational speed of a DC motor to a very precise degree. I highly suggest it.

This motor controller works great for my project. The steps on the knob can be felt clearly. It looks nice when powered up. Only thing that I see won't with it is that the display label doesn't need to say ON / OFF, because there's no switch, so that makes no sense. It does have an indicator above the knob that tells you which way increases or decreases the power. At 0 the motor isn't running but the knob will still turn so there's no on/of function to it. It's a minor issue, maybe at one point it did have a switch function and the label just hadn't been updated? Lol. I used this on a 12V, 80W radiator fan. So it pulls like 6.66A at 100%. Worked just fine in my tests. I haven't put it to long term use as I'm still building my project, but I like the look, feel and function. Plus the price is killer!!! Best deal out there for something that can handle the power I need to put through it.