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

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.

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.

This power supply works perfectly—stable output, easy to adjust, and very reliable. The display is clear, and the safety features give me peace of mind. Excellent quality for the price!

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.

This variable power supply is a game-changer for anyone working with electronics. Its flexibility allows precise voltage and current adjustments to suit various applications. Whether you're a hobbyist, technician, or engineer, its usefulness is undeniable. The intuitive controls make adjustments effortless, ensuring accuracy and reliability. Efficiency is at the heart of its design, minimizing energy waste while delivering stable power output. The sturdy build enhances durability, making it a long-term investment. Overload protection adds an extra layer of safety, preventing damage to your components. Compact yet powerful, it's perfect for any workspace. With consistent performance and user-friendly operation, this power supply is an essential tool for any electronics setup.

Been runing for a few days and it works as expected. like most switch mode supplies ita RF noisy. But for testing stuff and charging batteries it works well.

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 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

電源として、調整性、操作性共によい。

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.