DC power supply (0-30V,0-5A) adjustable, switching power supplies, mini high precision 4-digit display with USB fast charging interface, variable lab bench power supply, output on/off/encoder knob

I bought this bench power supply to replace an older one I had. I needed something with a little more current delivery capability. I ordered the 30V 10A version.The build quality seems pretty good and the dark grey makes it visually appealing to my mind.The display is bright and clear making it easy to read at a glance.I hooked it up to an oscilloscope to see what kind of noise it has, after reading that it does have some.Peak to peak amplitude was in the region of 200mV and RMS was around the 12mV mark.I don't yet do things advanced enough to worry about this however.Checking the voltage with a multimeter it was within 20mV of the set value and the current was within 40mA [measured on a clamp meter, so not very accurate]I had confidence enough in the stated values to kick start some lithium batteries that were refusing to charge, this worked as desired, so it has paid some of its way in rescuing batteries that were destined to go into the recycling, which is a bonus.I've used it to track the current draw of some BLDC motors I was conducting propellor thrust tests on and have confidence in the figures enough to use them to record my results.The output feature is handy, you can set the parameters and hook it all up and only have the power delivered when you wish to have it, this is a step-up up from my previous supply. You also have the capability to set Over Current Protection, which could prove to be handy.As mentioned in other review the beeps are annoying, but can be turned off in the menu system, the power on beep prevails however.All in all I'm happy with my purchase and would recommend it to others for someone who does some electronics tinkering. I cannot rate it against a lab-quality power supply, but for my use case it seems to be solid and reliable.I would say that for the price it is good value for money and I have no gripes with it.I hope this helps inform your choice, if you are considering this model.

Fantastic DC Power Supply – Compact, Precise, and Feature-Packed!I recently purchased this adjustable DC power supply, and it’s quickly become one of the most valuable tools on my workbench. Whether I’m working on electronics projects or need a reliable power source for testing, this little unit delivers on all fronts.Accuracy and Performance:The 4-digit display is one of the standout features of this power supply. It provides precise voltage and current readings, making it ideal for projects that require fine-tuned adjustments. I tested its accuracy with a multimeter, and the readings were spot-on, even at lower voltage and current levels. The 0-30V and 0-5A range is perfect for a variety of applications, from powering small components to more demanding devices.Build Quality:Despite its compact size, this power supply feels solid and well-constructed. The metal casing gives it a premium feel, and the design is sleek and modern. It’s lightweight yet sturdy, making it portable enough to move between workspaces without compromising durability.Ease of Use:The encoder knob is a game-changer. Adjusting voltage and current is smooth and precise, with no lag or jitter. The ability to toggle the output on and off is a great safety feature, especially when working on sensitive electronics. The intuitive layout of the controls and display makes it easy to use, even for beginners.USB Fast Charging:The inclusion of a USB fast-charging interface is a fantastic bonus. It’s a thoughtful addition that allows me to charge my phone or power USB devices without needing a separate charger. This feature alone makes it more versatile than other power supplies I’ve used in the past.Features I Appreciate:High Precision: The 4-digit display ensures you get detailed readings, which is essential for precision work.Output On/Off: Being able to control when the power is delivered adds an extra layer of safety.Compact Design: It doesn’t take up much space but still delivers the performance of larger units.Quiet Operation: It runs quietly, even under load, which is a big plus when working for extended periods.Pros:Highly accurate voltage and current adjustmentCompact and lightweight designUSB fast-charging port for added convenienceIntuitive encoder knob for precise controlReliable and quiet operationGreat value for the priceCons:The backlight on the display is quite bright, which might be a bit distracting in low-light environments (a dimming option would be a nice addition).The fan can kick in at higher loads, but it’s not overly noisy.Supplied Cables are not brilliant. I'll swap them out for multistrand, silicone wires.Conclusion:This DC power supply has been a fantastic purchase. It’s precise, versatile, and packed with features that make it ideal for hobbyists and professionals alike. The compact size and USB charging port are icing on the cake. If you’re looking for a reliable and accurate power supply for your lab bench or electronics projects, I can’t recommend this one highly enough!