Adjustable DC Power Voltage Converter with Digital Display AC 110V-220V to DC 0-48V 0-10A Module Switching Power Supply 480W Voltage Regulator Transformer Built in Cooling Fan

I love this power supply. The variable voltage is great feature. I checked the voltage with a multimeter and found that the displayed voltage was very accurate. Many people mentioned the sensitivity of the knob. It's true that you can make very fine adjustments with a light touch. It would be nice if the knob had a bit more resistance to prevent unwanted adjustments.Be aware there is no user manual or power cord. So you'll need to be resourceful.

These are working fine driving my DC motor

0-48v at 10 amps for under $40? Not bad. I did not expect a voltage readout display and an optional potentiometer that you can remoter mount for voltage adjustment. The display is on the top of the supply. However, be advised that like all switching power supplies there is some noise in the output. I could not measure this noise accurately with my inexpensive scope. However is was visible on the scope display and would increase as you raised the voltage. Attaching a dual wound toroid choke on the output that I salvaged from an old PC power supply, I was able to drastically reduce this noise.

The "extra" potentiometer that was included was especially appreciated. This allows you to place the voltage adjustment at a distance from the power supply itself. In my case, the power supply is under a control panel and the voltage adjustment knob was placed on the top. Allows for a "clean" looking control panel. The voltage indicator (voltmeter on the supply) is also appreciated. Very convenient during initial set-up and will be again if any troubleshooting is required. In my case, I needed to limit the output voltage to 20 volts. I added a voltage divider for the remote voltage knob so that the power supply "saw" the correct resistance AND I could limit the range. All in all... a well-designed power supply.

Missing a button to turn it off

I was having difficulty finding a 220 ac - 32 volt dc transformer for less than $200. I tried this because it is adjustable and low price so if I blow it up no great loss. To my surprise it works awesome. Thanks!

This power supply is supposed to put out 48VDC @ 8 amps. The max output is only 45.6VDC and is not suitable for a POE power supply replacement. The supply was cheap enough that I am not returning because I don't have the time to hassle with shipping drop off the return. Amazon or Seller do not attempt a return on this purchase. I am not returning it. I am eating the cost but want unsuspecting customers to know my issue with this seller not meeting advertised ratings for what they are selling.

It works, using it as an adjustable power source for my electronics bench.The voltage adjustment can be a bit finicky and the found does get loud and stays on, but all in all, good for the money

No me gusto y no tienen devolución de equipo dañado por mal empaque

Produit relativement fiable et performant pour le prix

This adjustable DC Power Voltage Converter meet my daily usage. So far so good as expected voltage and current no issue.

This unit worked for a while, then smelled like burned plastic before completely failing. Junk.

fan no work