ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell

Great power source…easy to hookup… compact size….love the readout and what it displays

Fabrique una fuente de alimentación con una fuente de pc atx y utilicé este modulo para voltaje y corriente variable. Ha funcionado excelente Muy intuitivo

This works great for a variable power supply. I’m using a 24 Volt 90 Watt laptop power adapter for the input. I have the boost converter set up to limit my 5 V output to 2.5Amps. The Voltage and Amp display on the unit match my Fluke meter readings. It took me a few minutes to figure out how to navigate the display functions using the push buttons. It’s not difficult after using it a few times.

bought and it worked for a year then stopped working unexpectedly

Not every power supply in a lab needs to be bulky or hyper-expensive. For many applications a small unit can suffice and this module is a good way to start. You get various measurements on a 2 line B&W display that is easy to read. In addition to typical Volt & Amp, it also calculates Watt and measures time and Ah (battery capacity) Adjusting the various settings & limits isn't easy as you have to jump through levels of menus. That's the price for the compact design. If you can accept such limits and e.g. prepare settings in advance and don't adjust dynamically/manually, this regulator is a good building block for a hobby/student lab. PS : There are cases that fit this regulator and can turn it into a miniature power-supply or battery charging module (max 30V DC input, adjustable output voltage & current) PS : This unit might generate noise on the output -- I didn't measure that

EXCELENTE

Easy to use and convenient.

Needed a variable power DC supply and ammeter for a test fixture this device filled both needs. Works great.