RioRand 7-70V 30A PWM DC Motor Speed Controller for Brushed Motors

Great price point and did exactly what I needed it to do.It did NOT come with the min-max placard( I had a coworker make it for me).It allows me to run my “homemade” fan at a lower amperage allowing me to get a longer runtime out of each battery!

Excellent value

Solid little controller that does exactly what it’s supposed to do. I used the Riorand 7–70V PWM DC motor speed controller for a small project, and it handled speed adjustments smoothly with no noticeable lag or overheating. The knob feels responsive, and installation was pretty straightforward if you have basic wiring knowledge.That said, it’s not perfect. The build quality is decent but not amazing—the casing feels a bit light, and the terminals could be sturdier. Also, there’s no real instructions included, so beginners might need to look things up.Overall, a reliable and affordable option that gets the job done, just don’t expect premium build quality.

This was a game changer for my son’s power wheels quad. I spliced the plugs in and use it on two different types of machines. One is the Perego John Deere tractor and the other the Yamaha electric raptor. I use Ridgid batteries 4amp and 8amp they both work great . You can turn the dial up and down with voltage resister for speed control. You will need 30 amp fuses if your kid rides hard. They pop once in a while when the machine is pushed hard.

I do my lawn care and my sons and I do a few friends' lawns. I needed something to regulate the GPM my sprayer distributed. The pressure regulator does not slow down the flow enough to spray prodiamine effectively so I got this device and hooked it up. This device slowed down my 5.5 gpm pump to one gpm. I needed a little more than that of course but for prodiamine, you want to get large droplets into the soil for best results at the recommended rate. Exactly what I needed. Now I can spray my fertilizer, weed treatment, and pre-emergent, all with the same setup. Just set the correct pressure to get the flow I need, choose my spray tip, make sure my 12v battery is charged, and off I go. I have over 20k of lawn to spray so the little back sprayer is too much of a hassle. I use a 26 gal sprayer setup with a 50ft hose. I add 21 gal of solution in the tank and it's done in 35-40 min. Awesome product.

purchased this ca Feb 2025 but just got around to using this and as others have described, worked GREAT for about 5 mins and then ONLY FULL POWER (no power control). I have a similar looking PWM from another vendor (DC Motor Speed Controller PWM Controller, Enmja 7-70V 30A Adjustable PWM Motor Speed Regulator 12V 24V 36V 48V) and this has been used extensively for about 1 year and it's fine. again, these 2 units LOOK ALIKE but clearly they aren't the same. also, I did some voltage measurements on the 2 units initially and the defective unit (before being used) required advancing the rheostat near 2/3 of its entire travel before it registered anything. that was until the controller failed resulting in 100% output and NO speed control at all.I'm going to order another of the previous model (still offered by Amazon as of 6/2025) since my experience with that has been positive.but I'll avoid this one that is defective. I'll also tear it apart to see if there is anything fixable (and cheaply) and if I come up with a solution, I'll post an update.one note: as others stated, when it works, it's great. it just doesn't work for very long.

I got this to act as my ac blower motor controller in my 88 trooper. +12v through a relay to power it (getting signal from fan controls) and the + and - wires straight to the blower motor terminal. I made sure those wires were terminated securely and will sized to avoid anywhere along the cable heating up and increasing resistance.I just had to splice the wires for the knob to lengthen them to install the knob on my dash.

worked for a short time==one week, then DOA...I ordered another one and seems to be OK so far.

Works as advertised , used them to control a cooling fan cab unit i built .

Excellent product. Tested it as soon as I received it and works great. For those of you looking for instructions here's how I used it:The thin red and black wires are to power the unit. This requires a voltage between 5V~30Vdc to work reliably. Below 5V, the display goes dim. Once you've powered the unit, it will display the source voltage in red digits.Now for the load current you use the thick RED, BLK and YEL wires - connect the RED & BLK to the +ve and -ve terminals of your power source respectively. Now connect the +ve of your "load' to the +ve of the power source and -ve of your "load" to the YEL wire. This should supply current to your load and display the load current in the blue display.Hope this helps.

work extremely well for kids ride on vehicles. regulate tol speed for some of the younger kids we have

It's a good thing I work with electronics because the diagrams on on this listing and on the suppliers web site would be confusing. One shown is for a three wire unit and another is for a AC meter. Yes the principal is the same but they could frustrate a novice.The good news is the meters work well. The ones I got are quite accurate compared to my Fluke bench meter and displays are bright and easy to read.I use one to monitor the raw output of my solar panel at the input of the charge controller and one to monitor the charge voltage and current at the 12v batteries.I used to tie up a few multimeters to check on this but these little meters left in circuit make it easy to keep an eye on things.I just connected the meters small and large red wires to the source positive and the small and large black wires to the source negative. Connect the load positive to the source positive and the load negative to the meters yellow wire.Received in good order and on time.

I used it to power one 775 brushed DC motor at 12V, well within specs. used it for less than an hour and suddenly it gave out, would not turn on after this, DO NOT BUY.