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

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.

I've been using this power supply since 2023 and it is still working great! It gets used weekly for powering up industrial control components. I have tested its output with an o-scope and output was smooth and more than accurate enough for what I am doing. It is so handy, I bought a second one to use in my home shop.

I bought this supply to use a bench supply for my electronic projects. I was tired of buying batteries. I did some quick tests on it and it performed quite well. The calculated voltage, current and wattage readings (under a load) were very close to actual measurement. I scoped the outout and it was the corect voltage and no ripple.My test setup: A 44.2 OHM, 2 Watt Resistor, Power Supply, Oscilloscope & Fluke Multimenter.Calculated Results: 9.0 VDC 0.20 Amps 1.8 WattsMeasured Results: 9.0 VDC 0.198 Amps 1.782 Watts (Rounding it is exact the same as calculated)Scope: No rippleBeing able to be either a current supply or voltage supply (depending load) is a good feature for me.The only reason I gave the product 4 stars versus 5 stars are the controls.The course controls appear too course. The fine controls have too limited range.This make setting the voltage and / or current tedious.For my use, this is not a problem as my power supply voltage will be constant as it supplies power for my projects.I attached some test pictures.

Works well. Have used it for a few projects. The volt meter was compared to my bench meter and was accurate.

The media could not be loaded. 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

I haven't gotten as much use out of this as I would have liked to, but it works well. It's one of those tools that if you need it, nothing else will really do. It's nice to be able to set up projects quickly and have the exact power supply always available.

So far it's working great. I use it to run a diesel heater. I made my own cables to run it with. The test leads that come with the power supply are pretty light. Definitely not rated for the amperage available.

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.