Kungber DC Power Supply Variable with Memory, 30V 5A Adjustable Switching Regulated DC Bench Linear Power Supply with Memory Recall and Output Disable Button 4 Digits Display and Alligator Leads

Please see attached screenshots taken at 1201 p. m. There is a 2 amp load on a 5 volt battery. The output from this thing is way too noisy, there are way too many design flaws. There are a lot of suspicious reviews about this power supply, according to me.

Ivan Griffith

| Nov 23, 2020

Do you think this is In a nutshell, One reason for buying this was so I could experiment with peltier coolers and top balance LiFePo battery cells. I don't know if the fan has variable speed controls - it seems really loud - and it's not flexible. You can only turn it off, or turn it on loud. The charger only charges at 3 amps when I'm charging at higher amperages Whenever there is a voltage drop, the fan kicks on and off constantly and loudly. Even the circuit has been turning on periodically, but with a slightly lower frequency, maybe sometimes as low as 4 amps. As for me, I live in the Pacific Northwest and the weather is also not good. This was actually the older vertical version of this product, and it did have the loud sudden fan, but it seemed to turn on less often than this one. The buttons feel solid, and I'm very pleased with how many options are now available over the previous model, along with how precise I can program the It does feel cheap, however, and has a plastic feel to it. This new unit has a cheaper and more plastic feel than the four smaller knobs on the previous model. Due to the fact that there is only one main control, they should have spent a little more Although it has not given me a problem when actually using it, and even at $90, I understand that it is a lower end product, the low quality aspects of it are.

Aron IQBAL

| Jan 01, 2021

My power supply is both this one and the earlier model from Kungber. It uses the same chassis as the prior model, but has improved features. A few improvements You can enable or disable the output. I agree! My biggest complaint with the previous version was this. When connected to the previous version of the circuit, it is really annoying to have to bring it up to operating point. As a result, you can set the supply before starting the operation, and then enable it directly at its end. I also like how responsive the controls are compared to the earlier model, which felt sluggish and had difficulty maintaining focus. The slightly more expensive ones are a step up from the cheap multi-color ones With an encoder on the pot, you can adjust the speed. Though it doesn't feel great, it works so much better that it makes up for it. It also has some profiles you can save. This isn't a matter of choice for me by any means, but I rather like it. It is now possible to switch on or off the power switch from the front of the device, again As a final note, the horizontal chassis is what I prefer. The equipment fits better with the other pieces of test equipment on my bench as well as being less likely to fall The downside This thing really does not appeal to me because of its screw terminals. As with the earlier model, they are the same. In general, the new model represents an important advancement over its predecessor. In spite of the price difference, I would recommend it over the other As long as they are both cheap, they are both a good deal. It is a switching supply, so it does not have great noise performance, but it is more than enough for general hobby use. The power supply I have is very nice.

Charlee GARDINER

| Dec 22, 2020

My favorite feature of this unit has to be the convenience. The following are the main good and unique features of A pleasant "click" can be heard when the knob rotates, and each click changes the amount by one or two The digit can be dialed in at the level of the selected digit, making fine control very Other old supplies I used have smooth knobs, making fine tuning difficult because they vary by a few millivolts. 3.
The memory feature allows you to store information The battery pack has three settings, I use 5V or 12V the most, and it can be set to anything you want, and it is quick and intuitive. The three settings range from 5V to 24V, for when I need to power pneumatic solenoids occasionally. The third part. The output can be turned on or off by This is a great idea, even though it sounds simple. A few power supplies have it, but most just require the user to disconnect the unit or switch off the power afterwards. If I have to make small adjustments to circuits, it is great to be able to let the unit idle. The fourth paragraph. There is no power switch behind the device, it is located on the front- The light can be turned on and off easily. Reaching around is not allowed. My picture shows me using this power supply within the box to nickel coat some iron components needed for a diy project. I chose this power supply because the constant current control ensures a constant reaction rate regardless of the conductivity of the solution over time or the direction of electrodes. It seems as if there is a 0 in the first set, but it's the only issue. With a constant current setting, the offset is 05 A. In this example, I set the current cap to 200 mA, which caps the operating current to 250 mA I found that it stabilizes below 300mA when I set it to 250mA as well. The regular account-keeping isn't anything to worry about since it's consistent and easy to account for, but I'll call customer support to figure out why it's happening. And last but not least, you'll also find that the customer support is great. The customer service rep reached out to me right after my purchase and promised to solve any problems I may encounter. That's pretty good customer service.

Nevaeh Donnelly

| Jun 04, 2021

The CV sends the configured voltage, output voltage, and displayed voltage within 2% of the configured value, but CC always sends more current than the configured value. As a result of using a 17 ohm resistor (heater block), I was getting a current of between 40 and 55 mA in excess of the configured value. Measurements were taken with an external fluke multimeter as well as the power A meter connected to the supply indicated it was outputting current, but this was significantly higher than the value it was supposed to deliver. In tests up to 1 amp, this offset of 40+mA was present regardless of the configured current. For hobbies and other projects, this approach may be fine, but you should be cautious if you need to recharge a very small lithium battery or do any other project that uses a limited amount of current. In addition, it's a pain to use that dial. When you are powering a project, it will constantly skip back and forth, so never try to adjust it.

Adriana Estes

| Jan 28, 2021