DC Power Supply Variable, 0-32V 0-10A Switching Bench Power Supply with 20W USB & Type-C Quick-Charge, Encoder Corase & Fine Adjustment Knob, Output Switch, 4-Digit LED Display – SPS-3010V

Works great
Have been using the power supply for a while and it has worked amazing!

An Impressive Low-Cost Power Supply
After purchase, I put the Jesverty SPS-12003N 120 vdc 3 amp power supply through its paces to see if it would meet its own published specifications. I was not disappointed. After I let the unit “warm” up for a while, I tested voltage and current capabilities for both outputs.The 5 volt USB Type A output stayed within 0.05 volts of its standard 5 volts rated output, even when providing its maximum stated current of 2 amps. Very good.The main output provides up to a full 3 amperes, its maximum rated current output, without regard to the voltage setting. The output voltage can be set very precisely to within 0.001 volt by use of the Voltage Course and Voltage Fine controls, and it stays on value throughout the full range of current drawn, plus or minus 0.001 volt in my unit. This indicates very good design in my opinion. Residual voltage ripple and noise performance as viewed on my oscilloscope was very good, being lower than the manufacturer’s specification of less than 150mV peak to peak.The voltage display was very accurate, typically within 0.005 volt of my reference Fluke voltmeter. Current display readings were a bit less precise, but still fairly accurate overall.Adjustable current limiting is a great feature that this power supply provides. A small flyer arrived in the box along with the unit’s operating instructions and the power supply. The flyer (and my following edits) show how to set up current limiting: 1.) Set current to zero, 2.) Set the output voltage to a value less than 5 volts, 3.) Short the output (test leads or other) together, 4.) Set the Current controls to the desired current limit you wish to use as shown on the display, 5.) Now set the Voltage controls to your desired output voltage, 6.) Connect your device. Whenever the current drawn from the supply reaches the setpoint, the output voltage will drop sharply. Note that the setpoint should be set just slightly higher than the maximum normal current you expect your load to need in order to work properly.I heard no noise from the power supply (including its internal cooling fan) at any voltage or load setting. Also, cabinet heating under load was barely noticeable to my touch, probably due to the internal fan.Is this a perfect power supply? No, but it comes close, especially in view of its relatively low price. Build quality seems good, but we’ll see how it performs over time. Like others have mentioned, It would have been nice to have multiturn voltage and current adjustments. The unit’s single turn controls can be a little finicky at times when trying to make precise settings. Also, the Power button does not turn off the output immediately; it can take a second or two for the output to reach zero volts after pressing the button (there’s a relatively large capacitor connected across the output terminals, internally, that must discharge over time to bring the output to zero). A separate output on/off switch would have been nice, too. So, only minor nits to pick.Recommended!

Works Great!
I have an old 1907 Edison phonograph motor that runs on 110 VDC. It fired right up and runs smooth.Thanks!

Ad said brightness is adjustable but I haven’t figured out how yet
If I just knew how to adjust brightness of the white display (assuming it can be adjusted like stated in the ad) I’d give the seller 5 stars. So far I’ve looked around and found brightness adjustments for other of the Jesverty models but not the one I bought. Oh well, I just have to pause a moment when looking from the supply display to breadboard so my eyes can adjust. Mind you the brightness is not an issue in a well lit setting; but during times I let the project run late into the evening is when I wish I could turn the brightness down.One other negative is the output jacks do not have the small thru hole which would allow putting a bare wire into the hole and then snugging down the jack onto it. Thankfully I bought a set of banana plug cables with alligator clips on other ends.That was pretty much the only problems I’ve had with the Jesverty power supply. Everything else is working just as advertised. I have sometimes wondered about having the coarse/fine knobs for volt/amp settings. The coarse setting alternates between the two left most digits while fine alternates the right most two digits (beware! If you do this adjustment with either volts or current below 10.00 you will be changing the tenths digit rather than only the ones or tens position) For example I planned on changing the amps coarse setting of 1.500 to 3.500 and the indicated position being changed was the tenths so I went 1.6, 1.7, etc rather than 2.5 and 3.5. Pay attention to the highlighted digit when making adjustments.I like the output power on/off function so I can make adjustments w/o having to disconnect the power leads. I also appreciate having a watt reading in the display – I won’t be grabbing the calculator nearly as often. I have noticed the watt reading changes with voltage or amps so I suspect it may be a calculated value rather than actual. For instance when charging a battery the amps will constantly be changing yet the watt display doesn’t pick up on those minor changes unless there’s a change to volt/amps of the display.I guess it’s too much to ask for millvolt level displays with a switching power supply; but I frequently work with very small adjustments such as 2-5 millivolts. Granted the display shows 0.001 for millamps so would be nice if the volt display would switch to 9.999 when working below 10 volts. Of course the display is well filtered so you don’t notice the ripple of the power supply output – the spec value of <0.5% Vp-p is consistent with what I saw on peak reading of Fluke 87 mulitmeter as well as o-scope. No real surprises there.The USB-A and C outputs are both limited to 20 Watts or 5 volts at 3.6-4.0 amps from what I've found. I haven't tried to see if the USB-C output will support any of the other possible voltages - documentation for the supply doesn't say anything either way. In the future I plan to get a couple USB cables with cut off ends so I can use the 5 volt output for electronics projects while at same time using the regular output for 6-15 volt needs.The fan is temperature driven so in my low <200 watt testing I have barely noticed the fan operation. I imagine it could be somewhat noisy once the supply is providing >500+ watts but that’s not something I’ve been able to check.I’m quite pleased with the Jesverty power supply. It should work well for general ps needs and the price/quality has me very satisfied with this purchase. A good buy in my opinion.

It seems ok , time will tell .hmm , may you invest a little more on an item with presets options !!

Good value, fine helper in the garage.

I was initially considering an alternative power supply with four memory buttons, but that model lacked USB ports. As a result, I chose this one instead.Pros:* Aluminum housing: Durable and gives a premium feel.* Compact design: Fits easily on a desktop without taking up much space.* Intuitive knobs: The coarse and fine knobs for voltage and current adjustments are excellent. Each step is tactile, making precise adjustments easy.* Quiet operation: The fan remains off under light use and only activates when cooling is necessary.* Versatile USB ports: Both USB-A and USB-C outlets are included, making it ideal for powering Arduino projects and other devices.* Flexible power terminals: The combination of a banana jack and a screw mechanism allows you to either plug in test leads or secure a wire by tightening it.Minor Cons:* Button quality: The OCP and OUT push buttons feel slightly wobbly.* Lack of memory buttons: While not a major issue, it would be great to have memory buttons for storing settings in future models.