KORAD KA3005D - Precision Variable Adjustable 30V, 5A DC Linear Power Supply Digital Regulated Lab Grade…

This is a very nice and not terribly expensive single output power supply. I have yet to use it extensively, but ran it through its paces the other night and found the features worked pretty much as expected. I especially like the programable memories, so I can set it up for different applications, and just tap the memory button and be ready to go. The over voltage and over current protections work well, as do the constant current and voltage functions. I do find the fine adjust a little odd, but that seems par for the course with these supplies. Finally, the ability to switch off the output and adjust the voltage and current with the output off is quite nice. FWIW, I've been doing electronics as a hobby and profession for pushing 50 years now.

Very easy to use, accurate and reliable. If you look at forums this model comes highly recommended; such a high value product at this price point. Being a linear power supply it's a little wasteful, but I haven't noticed an excessive amount of heat, and while I haven't observed it myself, the waveform is said to have low ripple. If I needed another supply I would buy another without hesitation.

I have a bunch of these and they work absolutely great. One of them has been running 24/7 for probably 2 years now. There are no power spikes if you use the output on/off button, the only way to get a small spike is to cut the mains power while the output is enabled but you're not supposed to do that anyway. I very much prefer these over switch-mode supplies because the output is extremely clean. The voltage and current settings and display are very accurate. I use these all the time and I bought my first one 4 years ago; I have both KA3005D and KA3005P (programmable) models and I've used to software to script one of them for automated testing. I did have an issue at one point where I needed customer support and both Korad and the seller (SRA) have been absolutely great with their support which is really important to me and I would say they went above and beyond. I had originally considered buying a "fancy" bench-top dual supply but decided that for the same money I can get 3 of these and that turned out to be a very good decision. My priority is to never get into a situation where I needed another power supply and not have one. I have 6 of them permanently as part of my work bench and a few more to move around where needed. If for some reason I needed another one I would buy this one again, no question.

High quality linear PS. Very low noise. Amazingly accurate digital meter (checked against Keysight DMM). Very good price. Would buy again. And they will answer your emails.

Works very well as a hobbyist bench power supply. The build is durable and strong, and size/form factor is convenient for those with limited bench space compared to a full size unit. Voltage and current measurements tested as accurate, which is really the most important thing. The controls are decent, but not excellent, but again, it is an accurate, low-cost power supply. It does exactly what it is supposed to do and it’s a solid value for the price.

Great power supply. A little of the high size of pricing but unlike the less expensive models that will tap out of the correct voltage after 10 or minutes of run time, this just keeps on going.

Product function and performs as described the easy use is good

It was a bit noisy, arrived poorly packaged, and with incomplete accessories. I did a few tests and it seemed to control the voltage and current well. However, I decided to return it.

Mas de un año despues, todavía la tengo y sigue completamente funcional, tal vez lo unico que haga es ponerle un ventilador mas grande, pero por la calidad de la fuente, estoy completamente satisfecho

I reduced one start, because the provided image did not match the one i received. yes it has the same model number, but the display panel does not have watts digits like in the image, when i googled the same image i did not see it in the Korad official website, however some people in youtube have it with slight change in model name by adding "s" letter e.g. KA3005DS. Also the box did not include test leads as stated in item description, luckily i have lots from my previous devices. overall the item i received still great regardless of the missing parts with different display panel. It just serves the purpose...thanks

Bought it a year ago and it's been working great with no complaints or concerns. Turns on every time and does what I need it to. Controls are quick and convenient and the output toggle is awesome so you're not removing/replacing leads every time you need to adjust the power supply. These seem to be the most noticeable things you lose out on when you buy a cheaper bench supply, but aren't a concern here. When I was researching the purchase I was concerned by how many people seemed to be complaining about fan noise... I used it for a weeks-long stint as a power supply for a ham radio and the fan is probably the most inoffensive noise I can imagine. The only part of calling it "a little loud" that's accurate is the "little" part. For the hobbyist or prosumer, I think this is exactly the right price point to balance quality/features and cost. Don't go any cheaper. If you're feeling rich, grab a used HP/Keysight unit for about twice the price.

Got what I needed

Llegó antes de lo esperado, funciona perfectamente,