7-80V PWM DC Motor Speed Controller Switch 30A

Used this controller on 12v radiator fans, and works like a charm. Easy wire up as well

Bought to control the speed to my salt spreader for my truck,it's a tailgate spreader. Works amazing for the price can't beat it

I used this to reduce the voltage on a Power Wheels that now operates on a Dewalt 20V Max battery. The board appears to be relatively simple. I am not an experienced electrical technician, but the one feature I would have liked to see was some indication on the dial as to what voltage was being given. In lieu of this, I placed an LCD voltage monitor on the output side and can now monitor the voltage being sent to the motor, but it’s essentially useless as the meter will show high spikes of voltage and then drop, which I suspect is the result of the use of the lithium ion batteries. Nonetheless, when the dial is too low, the motor will not turn, and an adjustment of the dial will adjust in over-voltage, so this piece certainly does work.

over all it works fine for what I need a (test bench) speed controller for a PMDC 10 amp motor. Several things you will need to be aware of are 1) you will need an external on off switch, the onboard switch is NOT conveniently located for someone with big hands. 2) My input voltage was up to 60 vdc and with no soft start, unless you are starting from the minimum speed the motor will literally JUMP to lightspeed when started. 3) while it is running at a steady state periodically the controller output will HICCUP while running. not sure what causes that? Depending on your application that may be an issue. 4) The unit does not have an output voltage and/or amp meter (which is reflected in its price). 5)The motor ran smoothly and quietly while operating thru its whole speed range. However Zero was not 0 rpm the minimum output voltage was somewhere between (5-10%) 3 to 5 volts for my app. which left the motor still crawling at min speed position with no load applied to the motor. However with just my hand to create a small load the motor would stall. Running with no load on the motor (15 min max) the controller unit never got above room temp. Because of my application I am unable to put the motor (and therefore the controller) under a full load. The controller is rated at 30 Amps and my motor at full load is rated at 10 amps. OVERALL it appears to be built well. the value for the money is a fair price. Just be aware of the above mentioned Items for your application. Yes I'm happy with my purchase. The reason for the 4 ratting are the above items.

Works very well for the price