⚡ Power your projects with precision and protection — don’t get left in the dark!
The DROK DC Buck Converter is a compact, adjustable voltage regulator supporting 6V-32V input and 1.5V-32V output with up to 5A current. Featuring a clear LCD display, USB port, and multiple safety protections, it’s ideal for DIY electronics, solar power controllers, and LED drivers. Its protective case and precise calibration make it a must-have for millennial professionals seeking reliable, customizable power solutions.
| Item Weight | 0.15 Pounds |
| Item Dimensions D x W x H | 1.57"D x 2.58"W x 0.98"H |
| Mounting Type | Pad Mount |
| Current Rating | 5 Amps |
| Power Source | Battery Powered |
| Minimum Frequency | 60 Hz |
H**R
Not only will it step down, but it will step UP as well.
I've bought multiple of these for various projects, but primarily for stepping the power output from my solar/battery powered security cameras from 24v to 5v. They've been working flawlessly for 2 years with zero maintenance or adjustment required.However while replacing my generic analog thermostat with a smart one recently, I found I didn't have the 24v line required to power the new digital controller. What I had was a 5v wall charger and one of these adapters. I removed the circuit board from the wall adapter and mounted it inside the same box this converter comes in. It barely fit but it fit! I tapped power from the 120v line from the A/C unit into the 5v transformer, then patched the 5v output to the input on this converter, set the output to 24v and it's also been working fine for over a year. While I realize that I could have just bought the 24v adapter, I wanted to finish the project before the weekend was over and this got me there. It's still working so I see no need to swap it out.
C**3
Seems like a good product! Easy to use
I have only had this for a few hours, so I hope it lasts and I hope it’s reliable. But using it for just a few hours, it is simple and it works perfect! I want more! My application is very low current draw, just for low voltage solenoids but it definitely works. Thanks!
J**C
Confusing at first
The directions that come with it are virtually crap. Your best bet is to find a video like i did (unless you know and understand electrical operations, which i didn't).The wiring was very easy, but you need to build the housing, and hat ended up being the first nightmare as the directions were not helpful.The second, make sure you have a very, very, tiny flat head screw driver. As I even struggled with the YouTube video (a tiny bit), I decided to say "F" it and just start turning the screws. The left is the volts, and the right, as far I can tell is for... I dint remember. I just know I turned that one around 30 times before it did anything.That said, it works great. I'm running an old laptop power supply to my HO train set. As it is putting out 19 volts, I had to get it down between 12v and 14v continuous power. It works perfect for that. I'd buy it again.
S**S
USB Beware
This unit has been working fantastic for a few years now, but... The USB port is tied to the output voltage. I have mine set to 24V to power a PLC, That means the USB port is 24V also. USB ports are normally 5V. If you plug in, (say your phone), and the output is set to any voltage other than 5V, you just fried your phone. Its not obvious at first, although in the documentation it does state that the output is terminal and USB. If you pay attention to the paperwork, its not hard to figure out. Nowhere in the documentation does it say the USB is 5V. It would, however, be easy to assume that USB is universal, and brick something valuable as a result.
P**R
typical high quality Drok product
This is the perfect bench supply for my offgrid cabin and my various low voltage projects. After all, I’m not building spacecraft here…The constant current mode is enabled by backing the I adjustment slug (amps) out to near the limit and then running it back in until the charge light comes on (assumes sufficient supply voltage and some kind of reasonable load like a 2p 18650 BMS and batteries). Running it in further starts increasing the current ceiling.I’m using this first off to drive a 2p 18650 battery pack with BMS that I built and I’m current limiting the charge rate to 1a which means 500ma to each battery. The BMS will limit the amps if not limited by the power supply feeding it but I haven’t tested it yet.
K**P
not dual output
well, the output does adjust the shorted current is 2.5a. you cannot have 2 outputs, different, the usb reflects what it is set at, if you put it at 12v, the usb will not turn on until you make it 5 and also it will not power up a RPI. I was buying this thinking I could use 12v out AND 5v usb but I made an error. other than that its OK for the $$. it'll charge a usb device with current limit so that's OK too. just an FYI
B**4
Works as expected so far
Just got it today and it seems to be working fine so far. At first, it didn't want to step down the voltage but made a change on the input voltage and it just started working. Not sure what that was but it works! It has like four voltage modes on one button and the other button to show the amps, turn on/off display. You have to assemble it but it is easy to assemble. No tools though just the screws, small plastic pillars, and a heat sink.Haven't got time to thoroughly test it yet but on a 5.03v output reading, multimeter showed 4.98v and I had a 220 ohm resitor with an LED and converter gave me 21mA reading. Using ohm's law you can see it's very close. So not bad!
D**.
Inaccurate
It works as a step down in voltage but it is not accurate. Input voltage was .1-.2 low and output was .2 high. There was no way to adjust those errors. The instructions provided with the unit didn't work. Their website didn't work. Internet search found the majority of opinions verified it wasn't accurate but for their purposes it worked. A consensus reported it was "cool" looking. I returned the item. You can buy something similar and cheaper it you don't mind the similar error rates.
