DC Power Supply Variable, 0-30V 0-10A Adjustable Switching DC Regulated Bench Power Supply with High Precision 4-Digit LED Display, 5V/2A USB Port, Coarse and Fine Adjustment SPS-3010

Used this for many things even getting me an 'A' for my science project about splitting water into hydrogen and oxygen. I also use it for charging devices and powering lower power single board computers like a mini HP or Lenovo. Also realy good price i love the look of it, it really accurate with the voltage i got +-0.06V and its super easy to use, small and very versatile as the examples i gave in the beginning. Love the versatility.

My reviews for electronic hobby equipment on Amazon probably sounds like a broken record because I tend to give almost everything high marks. This DC power supply is no exception. Operating on standard US household 120 volt AC power, this power supply produces up to 30 volts DC power. With coarse and fine voltage adjustments as well as adjustable current limiting, a DC power supply is a must have for electronic hobbiests. This model was a great price and it is compact and easy to use. Would purchase again.

Consistent, stable power with sufficient capability to support somewhat higher amperage needs were key criteria in my selection for my bench supply. I use a bench supply weekly, but for sporadic projects and testing rather than any heavy or production needs. So cost was also a big factor. This Jesverty SPS-3010 30v, 0-10A adjustable supply was on sale and I was honestly skeptical as to what I would find at such a great price. The included instructions are light, but I had absolutely no problem setting, using and adjusting right out of the box. It is surprisingly light in weight making me wonder about the circuitry. I deeper look showed good quality caps and solder and overall construction. The display is very bright, and adjustments permit relatively fine settings. For the average need of power supplies in this price range this is a winner with regard to output and settings. The voltage remained stable and load balance was likewise good on the various tests I performed. One caveat: The "Coarse" adjustment knob is quite sensitive and landing on the general output voltage requires some fiddling. The "Fine" adjustment range is limited and is not always sufficient to make all of the adjustment if you are heavy handed with the coarse knob. It comes with two basic leads terminating in alligator clips that are flexible and clamp reasonably well. Standard jack size permitting numerous other cabling/clip options as aftermarket purchases. My old leads fit snuggly and work just fine. The only other item included was a standard power cable that is just long enough to allow convenient positioning on my bench. Since the supply is so light it is easy to move around for different projects which I hadn't thought of but really enjoy. The power needs that I typically work with are well within the specs of this power supply making it quite versatile and handy. There is a USB output as well and I wasn't sure I'd really have much need yet after working with this for a while now I find I'm often using it as I work to complete a project that is USB powered. Nice for testing too! Honestly, if this were to last only a year I feel I'd have gotten ALL of my money's worth. My guess is that this will last long in my environment, and it does have internal fuse protection.

As others have mentioned voltage is fussy to adjust but not a big problem. My main gripe is the lack of a output switch. Once turned on the output is enabled at whatever voltage it happens to be set to. Ideally, you should be able to adjust the voltage and current limit prior to switching on the output. Otherwise this worked well and build quality is excellent. There are better choices on Amazon at or below this price point. I wound up returning it.

Summary: This is the 3rd power supply I have bought since 2020. The first two were the same 30V/6A (180W), one blew out, and the other is still working. Wanted a bit more power when charging 12V AGM batteries, so ordered this unit, which is a 30V/10A (300W). Overall, very satisfied with the performance. Use-Cases: In addition to charging 12V AGM batteries, I use this bench top power supply to charge lithium batteries. Have a couple of Milwaukee M18 battery packs that are older, and sometimes drop below the point where the standard charger will recognize it, so after opening the case, I can individually charge the cells. I typically start with this charger, and then finish off the cells with an XTAR lithium battery charger. Sometimes the XTAR stops at 4.0-4.1V, so I use the power supply to drive it to 4.20V when top balancing the pack. Observations: This unit has a robust cooling fan, and when running at high current (above 5A) the fan kicks on. While the added noise might bother some, this is the purpose of the cooling, to keep the power supply within the allowed temperature range, which can lead to long term reliability. This 300W power supply's cooling fan is definitely moving way more air volume than the 180W one. Selecting this one was easy because it was the #1 rated offering in "Lab Power Supplies", with over 1000 ratings/reviews. Recommendation: Last time I researched power supplies was 2021, so I spent an hour looking at a bunch of different options in the $50-200 range. I looked at a couple of dual units, essentially two of these in one, with the ability to parallel or series the output, but decided against those offerings which were in the $150 price range (3x the cost). The same can be done manually (with the requisite knowledge) with two individual units). In general, if you buy a higher rated supply, and run it at half power, it should last longer than a smaller unit running at full power (all the time). Pros: Jesverty is a specialty power supply manufacturer, many with great ratings/reviews; cost is comparable to similar offerings. Cons: None for now. Conclusion: At $50 for a 30/10A (300W) power supply, rating this 5-stars.

I was looking for a 30 Volt 10 Amp bench power supply to be used to power various 12 Volt ham radio transceivers with the requirement to produce minimum electrical "noise" across the HF spectrum. I tested several brands with similar specifications which all produced objectionable noise whenever energized (no current draw). This could be heard in the receiver which impacted the ability to receive weak signals. Finally found this Jesverty unit which worked well and produced almost no noise. Spectrum photos show one of the noisy units compared to the Jesverty unit under the same test conditions.

Works great.

Initially, the unit did not operate as I had expected. But after reading the directions and testing it according to the manufacturer's instructions, I believe this power supply is a fantastic product and wonderful value if you have the need for it. Conducted my testing with constant/variable loads and constant current set at 1 amp. Voltage and current readings were exactly as expected and tolerances were within manufacturer specifications. Definitely recommend. Oh yeah, the built-in fan also worked flawlessly.

Ottimo alimentatore, tensione di uscita regolalabile finemente e molto stabile. Ho provato a misurare la tensione prodotta con un volmetro digitale e leggevo la stessa tensione mostrata dal display dell'alimentatore. Utilissimo nello svolgimento del lavoro in laboratorio, oer ora affidabile e bello esteticamente. Il display è sufficientemente grande e leggibile. Importante non è rumoroso, la ventola entra in funzione quando necessario e il rumore è impercettibile. Ritengo più che adeguato il prezzo relativamente alle prestazioni che offre. Ottimo l'utilizzo per alimentare dispositivi elettronici e led. Consigliato

works as described. Would be nice if the red and black cable were just a little longer

Works as advertised. Allows to set both Vol and Amp to desired levels. In higher settings the coils will whine but it doesn't affect the operation. Good value for money.

Fonte excelente Atente todas minhas necessidades Só tem um problema No anúncio não tinha a voltagem de entrada Por tanto veio 110v a energia da minha região é 220v Vou ter que comprar um transformador pra utilizá-la

Acheté pour alimenter mon banc de débouchége de buse imprimante 3D, l'appareil est vraiment de très belle facture. Pas un défaut, aucune rayur car très bien emballé. Utilisation très simple pour un novice comme moi. La prise USB recharge très rapidement mes appareils, l'affichage est TRES lisible. Franchement TRES satisfait de mon achat. Je recommande ce produit sans problème pour un amateur.