DC Power Supply Variable,30V 10A 4 Digital LED Display Adjustable Regulated Switching Power Supply Digital with Leads Power Cord (30V 10A Black)

The price was one of the main reasons that prompted me to purchase it, but it was the reviews I saw on YouTube that convinced me to opt for this over the cheaper alternatives, which usually had problems with terminals like There was always a feeling that they were cheap singles It's pretty quick to turn around ones that failed. It was because of the Voltage control pot that I liked this one, since it was multi-function There was no turn, and therefore the quality was better. Although I am a complete novice in the electronics field, I have learned at least enough to know this. . The Voltage pot can be used in multiple ways You can easily tune it in with just a turn of the handle. Having watched other guys struggle with the Coarse/Fine pots on other supplies, I know it's not easy. Although this one has a multi-pot, the current pot is NOT multi-pot I would like it to be a turn. The interface is still easy to work with and smooth. There seems to be no problem with the calibration This is set up out of the box, but I have no doubt that it can be fine tuned from the trimmers inside in case needs be. I have updated It's been a while since I purchased another one of these and tested it. There is a VERY easy way to change the current (amps) control to multi-speed Take a turn as well. (WXD3-- I see there are 10K pots A two-watt light bulb that uses 10 watts. It's in the Google search results) and I just purchased ten of these units from Ebay for $13 each, and I intend to install one in each power supply I currently have. I don't think it's that big of a deal, but for $1 or so, you might as well? The other reason I chose this one was because I saw where other cheap supplies simply have the BIG flat aluminum plate sticking straight across the air flow towards the back of the case, thus frying all the other components at the expense of keeping the main chip I thought that was an awful design. Chips such as this one get plenty of cooling (on neatly finned heat sinks), but so do all the rest, since the main board is positioned parallel to the case, so it gets plenty of airflow. When plugged in, the fan cuts in and out under thermal control, except that it does a quick self-test if it is plugged in There is only one thing I would wish for here - the speed could also be temperature-controlled, but it is a very small thing. You can modify it yourself if you need to if it's a good pick. It does not seem to be unduly noisy when it does come on and is not bothersome to me when it does so. It actually runs up to 31 volts. A voltage of 9 volts and a current of 11 volts are required. This power supply provides you with four amps, so this is a good deal. Here are some things you need to know To set the current, you need to short out the croc clips while operating at a low voltage (four to seven volts). In the following weeks, as you increase the voltage, your current will gradually increase upon applying a load. The voltage is the only thing that increases as you hit your set current, and then the constant current mode will kick in. I will stop teaching the experts how to suck eggs here and move on to other things. The power supply I have reviewed is an EXCELLENT power supply in my opinion. I only took off one star for the above nit-pick since there is no such thing as a perfect 5 stars and since perfect doesn't exist, I have taken it off for that reason. There are a few things to consider. Currently, there are very few reviews of this power supply online, so I wanted to bring it to your attention. It has worked flawlessly since I purchased it but it has only been a week. I tested it pretty rigorously during that week. If anything should change regarding my review, I will update it. After I saw it on Ebay I noticed it on Amazon for only a couple dollars more, so I decided that it was worth it to get the return protection as with my Prime membership they will cover my return and I can also try it free for a month and then returns it any time. It isn't free work for me! I'm not paid by Amazon! I love it! *UPDATE* It has now been around 10 months since I purchased it could just confirm that my assessment has not changed. The power supply has always worked well and has never caused me any problems. I just wanted to let those of you (like me) who worry that the thing might blow up after a few months know it has never shown any signs of trouble, and some of my usage has put it to the test fairly extensively. And that's all I have to say. In the event that this changes, I will update as well. **UPDATE** I have now swapped out my current pot for a 10K pot with a multi - With a turn of the pot, the power supply is now awesome! Even though it only cost $1, it has definitely made a difference. The supply is priced at $30 each. My recommendation is to buy the supply as well as this modification.

Adeline Cardenas

| Oct 02, 2020

This is being used at work to power an embedded board that is being developed. I have a fancy digital supply at work, and this is about the same size. The board started up fine when I set the voltage to 12 volts and plugged it in. My PS at work displayed the same information as my test board. The first few months were not so productive with the computer. WFH was the only power source I used every day when I started using it A maximum of 350mA should be used. It has been dead for a few days after I reset it a few times every day using the front switch. The fuses were not blown There is nothing more to say. I put in a request to LONGWEI about the one year warranty. Upon request, a lady said, "After four months, you cannot get it back. ". In response to my inquiry about the warranty, she provided the following information. Dear Sir, we are very sorry about this. We are not sure if you have used it correctly since it has been bought four months ago. The product could be damaged if you operate it incorrectly. "

The she offered a used replacement product probably shipped
A week or so later, I received an email from someone quoted as "staff at Longwei" asking "Where is it currently located?"? How much voltage is the input for the power supply? Do you have any experience with changing the tortellini or the cable? In the event that it is convenient, I prefer a machine to shoot and send me a video If no load is present, the two knobs on the machine should be all turned clockwise to the maximum setting, and the front of the switch be pressed". They want a video of a dead supply, not a live video. The product being offered here is NOT for daily use You can get supplies if you work from home for a few days a month.
But for less than three days a month it might not be worth it. Upon four weeks of continuous use, it will fail and you may or may not get a replacement from China or Hong Kong.

Lukas Houston

| May 03, 2021

I have no interest in it. Although, I admire the fact that these guys create a game that's a bit different from others Offering a complete range of decent-quality products This means that the power supply must be of good quality. It's their job to do that. However, I do own this little dog, and it delivers the goods for me 100% of the time. We're fairly certain it fell from my wife's hands. I may even have one of my children do it for me. You know, something like that. I now have it banged out - The screw posts are very small, but work fine. I do note that the screw posts are very small, but still work fine This is super-duper It is my strong recommendation that you replace these with knurled brass speaker contacts, which operate the same way as the original contact. This is similar to wire functionality, but a kabillion times more elegant, and are way more stylish. Having knurled brass screw posts will provide you with a warm, sultry, and discreet feeling that will make you the envy of your neighborhood This is the A table squeeze from one of your friends' wives when you go to dinner together Nuts with knurled edges are a favorite among them.

Presley Wheeler

| Feb 23, 2021

This is an extremely dangerous substance and causes complete damage the moment it is used. The first time I used mine I encountered problems. As a first test, I was attempting to light up a LED with it, but I was unable to. Current never flowed through me. After that, I performed the short circuit load test up to 1 A, after which I could see some current flowing, and a voltage of about 0. As shown in some tutorial videos on "How to use a lab power supply," I did the short circuit load test. V. Valetina is the first. That's fine. But let's try it with a real consumer now. Using an old 4x1 camera, I took these photos. An old VFD powered by a 5 V battery (Entex Pac Man) ran at 6 V when powered by a 6 V battery. When I turned on the game it went ZZZZZZZZZ SHHHHH! The PSU is emitting smoke and the LED displays are In the game area I switched off the power right away. The PSU continued to blink LEDs and sizzle. As smoke filled the room, the room became filled with a foul odor. As soon as I took the plug out, I shut off the power. In the process of putting it back inside the box for return to Amazon, I can hear that something inside the case came loose. Despite my best efforts, the fuse failed to We are sorry to say, but that piece was a complete rip-off and dangerous. The quality control process did not pass quality control for me, as this appears to be a case of a "lemon". This is dangerous!.

Langston Medina

| Aug 15, 2020