ZK-4KX CNC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module Adjustable Regulated

Accurate and trustworthy

I must say this is a pretty decent product, I put zk-4kx manual into google and pretty much got the first result explaining what all the functions of this unit does, over all I am impressedThe build quality of the module is pretty decent it feels sturdy and durable. Its compact design also makes it easy to fit into my project, without even calibrating it the voltages displayed is pretty much what I am getting out as you can see from the image :)For its performance and features, I believe the price is reasonable and offers good value for the money.This is an excellent choice for electronics enthusiasts!

Firstly no instructions are included, however they are easy to find online. Adjustment is fiddly, as with any item with limited input controls. Voltage indicator is quite accurate once calibrated against a DVM and output voltage is surprisingly stable over a large range of input voltages. Current output indication is less trustworthy, even once calibrated it is is not linear over a range of output voltages.However, for the price, and as other reviewers have said, it is a handy item to keep around. No real complaints here.

Great product great seller

Only 3 stars as I found the software I think would crash as it approached 1amp output for some reason, it did everything it should but couldnt cope with more than 700mA output.Might be mine was just faulty, returned it and bought a slightly high priced different one which works fine.

frustrating....just sell with a manual

Put it inside an old flip case i had, added some terminals and a USB port.Everything works as intended..(Update on 7th of April)Converter no longer turns on, blinking green light with no output voltage whatsoever, even after going over all the settings meticulously.

Works well with 9v in and 13v out but gets quite hot running a tv and powered aerial at max 2 amps. Could do with suggestions on a suitable fan enclosure or how to mount bigger heat sink.