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4.95 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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  • 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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  • 17/04/2021

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

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  • GeoVIP5
    GR
    14/04/2021

    It looks perfect, we will see when we work of it

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  • 31/05/2021

    nice working good with software on pc

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  • 09/06/2021

    This is one of the only ones I could find that has a power switch to turn on the PSU allowing limits to be set, then an output button to connect the load. The USB output comes on when the PSU is turned on, not when the output is enabled. This is fine. Only rating 4 stars because sometimes the power button sticks down and has to be "flicked" to make it pop out. And there seems to be no way to turn off the annoying key press "beep" noise.

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  • 11/05/2021

    Качествена изработка! Добро захранване за парите си!

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  • 04/05/2021

    Have a nice day. I received the shipment and put it into operation. Thank you for the fast delivery.

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  • 22/04/2021

    Produs de buna calitate si livrare rapida.

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