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I’ve finally reached the third and final part of my look at the power supplies available from specialist stores. This part will be relatively short, but I hope it’ll be interesting. As always, the best bit comes at the end :)

Last time I covered three power supply models. Today there are as many as seven units under test, all bought from a different, but also fairly well-known store—"widely known in certain circles," so to speak.

Today I’m starting a short series of reviews looking at what other power supplies are available in Ukraine. I’m not talking about random units listed on OLX or Prom, but products from fairly large sellers. Yes, sellers is the right word—I’d like to say manufacturers, of course, but I don’t know that many manufacturers, and they mostly focus on industrial models, though not always.

I’ve already reviewed some models from this series. Back then, we were given “prototypes”—just the circuit boards. This time, the power supplies differ from production units only in that they aren’t potted; they also incorporate the changes we recommended.

We’ve reached the last compact adjustable converter in the RK series. I have to say, Riden has pleasantly surprised me with this lineup: it covers a wide range of power and current ratings, includes an H-series model—a less powerful counterpart to the RD6012H—and also a model with an extended output range, which is what I’ll be looking at today.

I've taken a look at another converter from Riden: the RK6018, which is advertised as delivering a full kilowatt of power. And yes, I think that's a record for something this size so far. Let's take a closer look and put it to the test.

Riden is really on a roll. I’d just finished reviewing their new RK6012 when they released three new models at once. I already have two of them at home, and the third is on its way. Honestly, I never expected them to bring so many new converters to market so quickly. Though, to be fair, I wouldn’t mind seeing an RD6036, first of all, and an electronic load from them as well.

I’ve already posted an unboxing video of the RD6030-max power supply, and said then that I’d write a short article about it too. But one thing led to another, and the article kept getting put off. I’ve finally found the time to pull everything together and tell you about it.

A while ago, AliExpress started showing me listings for the same power supply from different sellers. I had a project that called for exactly this kind of power supply, so I first bought a few to try out, then some more, and then more again. Before long, I was using these power supplies in production devices.

Not long ago, I wrote that I’d ordered Atorch’s new BW600 electronic load. I’ve now received and tested it, and have also figured out some of the new version’s quirks. I found both advantages and drawbacks, and built a couple of new devices based on this controller.

The traditional 11.11 sale is coming up, so I decided to put together a bunch of links to products I came across over the year since the last sale. Some are products I bought myself or added to my cart but never got around to ordering, while others are simply things I thought might be useful or interesting.

One of my readers saw my comment about the low-voltage UPS board and suggested I review it, so he sent me this board. Given the current circumstances, these devices have become relevant again, so of course I agreed—especially since I was very interested in it myself.

Once upon a time—or, to be more precise, 5 years ago—I posted a big roundup of various interesting products. Time went by, and I updated it a little, but now it’s time for a complete refresh, so I decided to start a new thread “on this topic.” As always, I won’t use the tired old phrases “top 100 products” or “how did I ever live without this,” but I will say that you might find something useful here after all :)

I've been meaning to start this topic for a long time. I could have called it something like "Top 100 Best Products," but I don't want to write another cookie-cutter list, so it'll simply be called Popular and Useful Products. I'll be posting links here to various products that may interest electronics enthusiasts (mostly) and blog visitors in general. Some of the products will be ones I've tested myself; the only difference may be the seller.

I've mentioned several times that we're not just trying to find decent power supplies among all the Chinese junk—we also send the factory recommendations for improvements when a power supply has no critical issues and is reasonably priced. So today, most of the models here are ones we received after they were modified to meet our requests.

A couple of weeks ago, I contacted a Riden manager about a device. Things turned out to be a little more complicated with that one, although it’s already on its way to me. But he immediately offered me their new model to review, and I couldn’t say no, since I’ve reviewed pretty much all of their devices.

About a year ago, I reviewed my Atorch load switching board. Then they released a new version of the load, followed later by a new switching board. I waited a long time, hoping someone would post decent photos for analysis, but nobody did, so I finally bought one at the end of last year.

This turned into a quick-fire roundup: seven power supplies at the same voltage, 5 V, but with different power ratings. These power supplies are often used to power addressable LED strips, LED displays, and similar things, but there’s nothing stopping you from using them for other purposes too.