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4.98 out of 5
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  • 20/04/2021

    ..μια μικρή και πιστεύω αξιόπιστη συσκευή...δεν την δοκίμασα ακόμη στο πάγκο αλλά η πρώτη εντύπωση είναι ικανοποιητική...θα. δείξει στο μέλλον.Αργη αποστολή περίπου ένας μήνας μας έμαθε αλλιώς η Banggood....

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  • 01/10/2021

    Small and lightweight power supply, item as described. The power supply has two memory channels which is nice to have. There is also a USB-A port which gives out up to 2 Amps. The included Windows software works, but its a very basic software. Keypresses produces a loud beep, which fortunately can be turned off. The only thing I'm missing on this power supply are binding posts, to get more ways to attach cables and leads. Shipping was super fast this time, from the CZ warehouse to another EU country, only 3 days from ordering date until item received, thats a big plus. I can recommend this power supply for normal hobby use.

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  • 15/06/2021

    Super fast shipping (EU warehouse), excellent packaging (original one). A small form factor switching mode PSU with lots of power and with excellent functions. The user interface is very intuitive, the supplied manual is hardly ever needed (maybe switching off the annoying beep with long pressing OCP is the only exception). If it's not heavily loaded it's also completely silent (fan is stopped). Some of the good functions: 1) It has hard on/off switch (so no active electronics is powered when switched off). 2) It has output switch (so when powered on it does not immediately outputs voltage, you can adjust first without unplugging). 3) It can work in both CV and CC mode (in which mode it drops voltage till current is decreased to the limit). 4) It has also OCP mode (in which case unlike in CC mode it switches off the output instead of reducing voltage). 5) It has good resolution and 2 memories. 6) It can be SW controlled (USB stick received with SW, I have not tried it). 7) It has USB charging output. 8) Cables (both power and USB) are reasonable length and quality. Being a switching mode PSU it has big spikes in the output though. The RMS value meets the spec, but as we know it tells just a small part of the story. Luckily it seems that the core of this is shared among several other products so slowing down the MOSFETs works also here (2x~33Ohm+2x~47nF, there is video about that if you search). With 27Ohm+47nF I could reduce the RMS from 12.7 to 3.7mV and Pk-Pk from 281.1 to 83mV in a noisy environment so PSU is not the only noise contributor (as there is no free lunch probably it has also slowed down the load response that I don't care). Another issue is that the rotary encoders could be better de-bounced from SW. In short: This is a very good feature packed and powerful PSU that has all relevant functions for a reasonable price and if needed can be modded to be even better (it won't be still a linear PSU though if you look for very low noise output).

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  • 10/06/2021

    Super fast shipping (EU warehouse), excellent packaging (original one). A small form factor switching mode PSU with lots of power and with excellent functions. The user interface is very intuitive, the supplied manual is hardly ever needed (maybe switching off the annoying beeping with long pressing OCP is the only exception). If it's not heavily loaded it's also completely silent. Some of the good functions: 1) It has hard on/off switch (so no active electronics is powered when switched off). 2) It has output switch (so when powered on it does not immediately outputs voltage, you can adjust first without unplugging). 3) It can work in both CV and CC mode (in which mode it drops voltage till current is decreased to the limit). 4) It has also OCP mode (in which case unlike in CC mode it switches off the output instead of reducing voltage). 5) It has good resolution and 2 memories. 6) It can be SW controlled (USB stick received with SW, I have not tried it). 7) It has USB charging output. 8) Cables (both power and USB) are reasonable length and quality. Being a switching mode PSU it has big spikes in the output though. The RMS value meets the spec, but as we know it tells just a small part of the story. Luckily it seems that the core of this is shared among several other products so the method described in the video "Getting rid of Excessive Switching Noise on the Longwei LW-K3010D Bench Supply" is also applicable here. In short: This is a very good feature packed and powerful PSU that has all relevant functions for a reasonable price and if needed can be modded to be even better (it won't be still a linear PSU though if you look for very low noise output).

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  • 22/09/2021

    Arrived promptly, very well protected. Nice small power supply with big digital display and ease of use.

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  • 14/09/2021

    Okay. Okay.

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  • 22/08/2021

    Good value for the money. nice startup, almost no overshoot...

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  • 17/04/2021

    A small, powerful and reliable source that meets all requirements.

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  • 08/01/2022

    It is lightweight and very practical to your specifications I love the colors and the colors...

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  • 31/05/2021

    nice working good with software on pc

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