DC Power Supply Variable, 0-120V 0-3A Adjustable Switching DC Regulated Bench Power Supply with High Precision 4-Digit LED Display, 5V/2A USB Port, Coarse and Fine Adjustment SPS-12003

I tried it out running 100 V at 1 amp into a resistor, and the voltage on my DMM agreed within .1 volt of the meter on the panel. Also switched it to AC volts and got 3 mV, so not an excessive amount of ripple. For the price it seems to be a fantastic deal.

My old power supply died so I found this one and it works great for anodizing titanium which is all I need it for. It’s easy to set up and use and everything is straightforward.

I was delayed in continuing my electronics project, when I did resume I found that there was a fault in this new unit, which had passed beyond its return deadline. Even so the seller promptly upon understanding the issue sent a replacement power supply. This service was excellent, sometimes things get by and don't work & that's when you learn whether you are dealing with a reputable seller who is self-responsible, or not. This seller is excellent and stands 100% behind their product. This is significant today where you can buy a component or device and have no idea about who the manufacturer is or even if the product is real. Jesverty is a good manufacturer as indicated by the many positive reviews they receive - including this one!

Works well and the quality is good but it has a fan that seems to run on a timer and it's loud.

Product is great but seller is even better resolve an issue very quickly went out of their way they did not have to but very happy with the product that was sent.

I purchased the 120V, 3A unit. My unit is pretty accurate - certainly more than I need for my use cases - testing triacs, diacs, trigger circuits, etc. I needed somewhat high voltage for testing certain components like DB6 diacs (typ. 60V). I usually see up to 10mV of tolerance - sometimes up to 20mV, and sometimes spot on. I have no idea if the operating tolerance of mine would be the same as yours as I only own one, but I am happy with the performance for the price. The external build quality is fine - nothing special but the display is nice and is easy to read. The knobs move quite quickly, and the one suggestion to the company I would make is to have slower, more precise voltage movements with the FINE adjustment knob. If you need very fine, precision adjustments, this unit may challenge your patience. If you don't, this may be the unit for you

Had this power supply for a few weeks now. I used this a handful of times, and now it keeps blowing the main 120vac fuse. nothing major happened as I got this to charge lifepo4 cells. I believe it’s just the fact that the power supply cannot sustain a continuous load at rated power of 55.20v at 3amps. I am an electronics repair guy so I will be opening this up to find this devices short comings. Update, so inspection I have found a direct short on the bridge rectifier dc output, I followed that over to the fets on the aluminum heat sink and both the small fets are blown. This is going to be a challenge to repair as the heat sink is not screwed to the board, it has aluminum studs that are smashed down to keep it in place. I am going to try to get this repaired and back working. Update: 10/16/24 don’t wast your money on this cheap stuff. I did order the replacement diode array (DSEC60-12A) and the two power mosfets (TK12A50D). Well after checking all other components I powered it up and it worked fine until, I hooked it up to a battery pack to top balance at 56 volts. I had the current set to 1.5 amps. This unit ran all of 3 minutes at this setting and POP there went the fuse again. Do yourself a favor and save your money and buy a better more expensive unit. We need to stop supporting these cheap products.

I originally thought the unit was defective. I was unable to set the voltage until I learned that you can't have the current adjusted to zero. Since then I've used this power supply to revive two 20 volt lithium ion cordless drill batteries that had low cells in them. I've also revived four dead 72 volt LiFePo4 golf cart batteries.

After a year I can tell that this product still working very good

Chegou bem rápido, bem embalado e o produto funciona perfeitamente.

A un paio di mesi dall'acquisto, con un uso non intensivo, mà frequente, nè sono pienamente soddisfatto; mantiene le promesse e la ventola parte solo sotto stress.

ファンの音が大きすぎる！しかも少ししか負荷を掛けていないので全開で回ります!!

Finition soignée, appareil conforme à la description, réglages cependant un peu délicats