DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V Step Down Voltage Regulator with LCD Display Volt Transformer Reducer CC CV for RV Solar Panel Golf Cart

I have a sprinter van that has been converted to a camper. It's powered by a battery pack which works well, except that my LED lights would flicker and you could hear the exhaust fan slow when the diesel heater would kick on. The load was well within the battery pack's capacity, but I could see the output voltage drop when the the heater cycled on (I assume the glow plug).I used this Boost Buck converter to stabilize the lighting and fan circuits (one each) and now have no problem.It seems well made, has many more features than I need (adjustable, display, etc), is reasonably priced, and solved the problem!

I purchased one of these for a project recently. It worked so well that I purchased another one in order to expand my project.

Nice unit it provides a wide voltage range of output. Easy to set up an use. Nice touch with the adjustment buttons and plexiglass shields. What could use improvement, would be nice to have paper instruction or a link to instructions, the voltage display, it is a bit off when measured by 2 calibrated DVM's but it is in the right range. The other area for improvement is the ripple/switching noise is high at 500mv pk-pk for my application at 1.5vdc. Depending on your application this may be acceptable. I didn't check if this is consistent through the output voltage range. I plan on putting some type of filtering on the output to bring it down. Other items, great size, lots of functionality for the price point.

This power converter was the perfect solution to the fluctuating electrical power supply coming from my solar panels on the roof of my 2015 Ford transit 250 van to the Max fan that I mounted on the roof. It came unassembled and was easy to put together. And it’s small enough to tuck away in a small opening in the vans sheet metal and looks really good too with the protective plastic pieces that go on the top and bottom of the assembly. I’m relieved to have this safety feature in my wiring to the fan motor so I don’t have to worry about changing it anytime soon.. I highly recommend installing one in the power supply line for your electronics

Excellent. Exactly what I need to convert my 12v power supply to 8.5 volts

The “Drok” Boost Buck Converter (ZK-DP60) module that I received has problems in the displayed output current value.The voltage I applied to the input is 12V direct current. I set the output voltage to 9V and I did not limit the current with the corresponding setting.Under these setting conditions, and with no load connected to its output, it indicates a consumption of 0.013A (See foto). It should read 0.000mAWhen I connect a 56 ohms 2W 5% load in series with a multimeter, the actual current displayed by my instrument is 157.5mA while the displayed on the module is 0.172A.As time goes by and the module increases its temperature, the current displayed increases, reaching up to 193mA (See foto), but the actual current, measured by the multimeter, remains at 157.5mA.Of course, the indicated power consumption is also wrong.Continuing with testing and with the module having raised its operating temperature somewhat, I remove the load. Now the indicated consumption is 33mA (it should be 0.000mA since I removed the load).This value decreases as the module cools down until it reaches the 13mA with which I started the test.I also notice that when I twist the printed circuit board (PCB) the current value displayed on module changes enormously, depending on how I twist it in one direction or the other, this value increases or decreases. This happens with or without load on the output.I want to clarify that these are the only problems that the module has, since the output voltage remains stable with different load values and the setting of the maximum current limit works correctly like the other functions and settings that the module has.Unfortunately, I cannot ask you to replace this module because I live in Uruguay and I made the purchase through a courier that sent it to me from Miami to Uruguay. It is impossible for me to send you the module from Uruguay to your country.Please tell me what to do.

Seen these suggested for a long time and never paid much attention. Need a power supply for a weird 15v board so grabbed this because it was cheap, and honestly it's one of the best purchases I've made unexpectedly. The quality is top notch. The output is spot on and very stable. The heat is rather reasonable for the conditions in which I use it now. Tiny, flexible, easy to use. I use this now for everything from charging individual cells in unbalanced battery packs to powering prototype boards to just being a power supply for random led strips I want to run at my desk that night. First purchase from DROK and now that I've gone through more of their lineup, I'm hooked. Great job guys.