Facmogu 9V-24V 3A 72W Adjustable Power Adapter with LED Display, Multi-Voltage 100V-240V AC to DC 9V 12V 15V 16V 18V 19V 20V Universal AC/DC Variable Power Supply, Various Voltage AC to DC Converter

I cut the plug off of this and wired it to my slot car track and it works very well and is adjustable.

Good

I got it for my mini lathe so it is veryable speed and it does that

Just what I needed to run my 10 fan Grow booth

Perfect. Exactly as presented

Nice idea. Though when checked against 2 VOMs (who agreed with each other), meter on device showed as much as .5 volts off. Sometimes over. Sometimes under. Interesting. Also could not get down to 3v. Lowest was 3.65v. Highest was 12.6. Very hard to get voltage output to any level of accuracy for particular circuit needs.Keeping in any case. Handy for testing unmarked DC motors and such. At least I'll have a ballpark idea of power requirements for some of the surplus stuff I buy for gizmo and prop making.

Replaced the control box on a se@ machin@. Made it slower at start which is what I needed it for. Great part for this machine.

The minimum voltage supplied is 3.5 volts — not the 3.0 volts as advertised.That 3.5 minimum volts is actually what I needed, so I set the voltage at minimum and it seemed to work……24 hours later, the voltage had creeped up to over 6.5 volts, and BURNED UP $80 worth of green lasers!!!This power supply is terrible. I do not recommend it!Caveat Emptor!