KORAD KA6005D -Precision Variable Adjustable 60V, 5A DC Linear Power Supply Digital Regulated Lab Grade

This was bought for some basic lab bring-up. Our system used 48V, thus the need for the 60V model. Interface is straightforward, and it's easy to switch between coarse and fine adjustments. I would have rather seen the On/Off button labeled as Enable, but not a big deal. I do like the fact that the settings for both voltage and current are displayed when the output is disabled and then the display immediately switches to actual status as soon as the output is enabled. The status LEDs give you a nice concise view so that you can quickly see what the supply is doing. I would definitely order this again when we expand the lab.

It was seriously a day after the one year warranty was up that this thing broke. The internal power supply went bad. A lot of money for only one year of use.

I am very impressed with the quality of this power supply. Supply has optional over current protection and over voltage protection which will stop the supply if the current or voltage limits. Each is independent. It also has voltage and current limiting along with an indicator that will tell you which is the limiting factor for your circuit. Initial testing shows voltage stability over a fixed resistance is rock solid, no noise could be seen on the oscilloscope.Edit: After some usage I've identified one issue with the supply. If it rapidly switches between current mode and voltage mode the relays click and the display goes haywire. It does a poor job in some cases of determining which it needs to be in and can end up oscillating between the two.

I'm using this power supply to charge 42v 5ah Lithium Polymer Batteries. Let me say that this little thing is a real work horse.Charging at 42v and 5a for over 30min and the operation was flawless. The fan is very adequate and keeps the supply from getting hot.I love the design, especially that I can shut off the output but keep the main power button on allowing the fan to continue to cool the inside. That is a really smart feature. I spent some time looking at different power supplies before settling on this one. It was a little more than I had planned to spend but it was well worth the money and I'm glad I got this one.

I really wanted an affordable and quality linear PSU and this works greats. It is still going strong today.

Fantastic value for money! Note: I am a hobbyist/experimenter, I am not qualified to review this for a school or professional lab.This power supply is perfect for me, because1. I am a hobbyist and I want a small, inexpensive power supply2. I have projects that run on 36V and 48V, so the higher 0-60V range is ideal3. Almost none of my projects require more than 5A4. Accuracy to within a few millivolts and a couple milliamps is well within my needsThis supply is not perfect. If it were a much more expensive unit, I would dock stars in the review, but the fact is this unit delivers everything I want and more for the price I paid.That said, this power supply could make me even happier. Here are the things I found missing; if these are dealbreakers for you then you may want to step up to a costlier unit.1. It's got a quiet, but not a silent, cooling fan. It has a PC cooling fan in the back of it that generates a low humming sound, not annoying but enough to mess up audio if you're making videos of your electronics work. The manual says the fan only turns on when the unit is hot; my experience so far has been that the unit is never ever not hot.2. The controls are unintuitive. I read the manual three times before throwing it away and just fiddling with the darn thing. Took about half an hour of fiddling to get comfortable with the unit.3. The overcurrent protection snaps the unit off instead of alarming and limiting the current. This might be a standard and it's certainly understandable behavior. However, as an experimenter I often work with devices and circuits that exhibit odd behavior and if they start to draw too much current I often want to clamp the current at a maximum feed instead of shutting off the circuit. That's a rare enough thing for what I want that I don't mind building an external current limiter, however. EDIT: The unit can do this! In "OCP" mode, the unit turns off when an overcurrent is detected. Playing around with the unit I discovered that in "OVP" mode, or "Overvoltage Protection" mode, you set the current and the unit will dial back the voltage to keep the current under the set limit without turning off. Leaving this here as a further demonstration of drawback #2.Again, these are all features that I would only demand in a much more expenisve unit. I am VERY happy with the unit at the price I paid. I look forward to many years of hobbyist fun with it.

The only thing I did not like was the fact that the circuit board connections were not labeled

This supply is a bit heavier than the switching ones, but has more stable output. Highly recommend for lab use.