KA3005D

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.

I'm just using this for hobby purposes at home but it works great. I've used some high grade power supplies so when I say this is a nice supply I have some experience. Now this is a low cost supply and I was concerned it might be a waste of money. So I connected a Tektronix scope to evaluate the output voltage. This is a linear power supply so the output voltage was very clean. I also checked for spikes when the output was switched on and off with and without a load and no spikes were seen. The current control and voltage control worked very well. The ability to connect this to your test circuit, setup the voltage and current and then turn the supply output on is a feature not even found on some high end supplies. The only issue I had was the power cord connection on this supply seemed a little lose to me. I would recommend this to the electrical/electronic hobbyist.

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.

I’m honestly really disappointed with the KORAD 3005D. I bought this power supply to safely test my FPV drones before flight so I wouldn’t risk damaging my LiPo batteries while troubleshooting. It saw light use only, no abuse, no heavy loads, just careful bench testing. After about a year, the unit stopped functioning properly. It powers on, but the output will not stay active. For something in this price range, lasting just a year feels like a complete waste. What made the experience worse was the customer support. I reached out for help and was told someone would follow up with me, and they never did. No response, no direction, nothing. That is honestly unacceptable. To make it even more frustrating, I am writing this in March, just about one month outside the warranty period. So I basically ended up with a product that lasted a year and no support when it failed. I really wanted to like this unit, but between the reliability issues and lack of follow through from support, I cannot recommend it.