HGJI 60W Adjustable AC/DC Adapter Switching Power Supply 100-240V to 3.3-24.7V 2.5A 50-60hz with LED Voltage Display US Plug

Very pleased with the quality of the controller, and the ability to fine-tune the voltage output with the digital led display. Much nicer than expected. No problems at all, and the unit arrived very fast and packed well.

I really like this power supply overall and it is still working with one caveat. If I unplug it and allow it to get cold it won't start back up. This has happed twice now that weather has cooled down. By cold I mean 68F not really that cold. The first time it happened it was still pretty warm out and I tried it later in the day and it started fine.Now that its cold out I heated up the oven to 110F shut it off then put the power supply in and sure enough it came back to life. I'm planning to leave it plugged in now that the gable fan project is done and it seems to work fine as long as its on and warm. I have it plugged in the attic space, but its on the house side of an access door so it should stay warm enough when left on to be ok. Its a shame as the supply is very good overall except for this. I measured the voltage output and its pretty much exactly what the display says. Adjustment is very smooth and perfect to control the speed of 24 volt fans I installed which work all the way down to 3.3 volts.Update to review 10/27/2019The power supply is dead. I've listed another supply available on Amazon that is only rated at 2amps 3-24volts, but has an on off switch built into the power supply and that is the one to buy period if you need more output get two of this one lol.I took it apart and the components seem to be of high quality except for the brain of the supply which as far as I can tell is the only component that is dead. One cool thing I can use from the parts of the dead supply is the display. It is a stand alone voltage meter that is good from 3-24volts at the minimum so its not a total loss as I have several spots I can use it including monitoring solar panels and an RC cars batteries.https://www.amazon.com/gp/product/B07RB1GZSQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I love the fact that it has a continuous dial that gets me any voltage between 3.3V and 24V, with a good amount of amps. Great for basic charging and also for electronic projects.I wish it came with set of common connector adapters. I had to buy those separately.About the dial: the dial should be protected in some way from accidental turning. If turned up accidentally during charging, it could damage a device.

The power supply arrived on time and was well packaged. It has worked exactly as advertised. The readout matches the measured voltage precisely when in use.

Product didn’t work, voltage meter didn’t aluminate nor any voltage output.

This Is A Handy Little Unit. The Output Is Accurate and Clean. One Needs (if tinkering) a Set Of Adapters, But I was Aware Of and Had. BUT ! ... NO POWER Off Switch ! The Convenience Would Have Surely Out Weighed The Cost (a few cents) To Have Had It In The Adjustment Control or Ever As a Stand Alone. Do Not Understand!, But A Bit' Of A Pain.

Used this for an AFX HO race track, worked great, handled the instant current surge of drag racing, both cars did not overload the power supply.

Worked good for 3 months, then it just up and quit. Only used it about 8 times and never over 14 volts.

Fonctionne très bien et prix agressif

Failed after 1 month powering StripLEDs 12V