Amazon.com: 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 : Electronics

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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

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Size: Buck 5.3-32V to 1.2-32V 12A

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Purchase options and add-ons

Brand	DROK
Power Source	Battery Powered
Product Dimensions	2.04"D x 3.22"W x 1.25"H
Current Rating	3 Amps, 8 Amps, 5 Amps, 10 Amps
Specification Met	REACH

About this item

【Parameter】 DROK Power Supply Module input volt range is DC 5.3-32V; Output volt range is DC 1.2-32V which is variable. Output current can reach to 8A and Output Power can reach to 120W for long-time use. If enhance heat dissipation, this converter can reach 12A and 160W output.
【Characteristics】 This Buck Converter is equipped with LCD Display, Acrylic Case and Heat Sink. LCD Screen can display input/output voltage, output current and output power. Voltage precision is 0.05V, current precision is 0.005A. Acrylic case can keep the converter board away from dust, which is protective. Heat Sink can keep module 120W for long-time using in a low temperature. If you want to reach maximum power 160W, please improve heat dissipation.
【Easy Operation】 A user manual will be included in package, which can help you easier to operate. The button can control ouput voltage ON/OFF status, and you can set the default output state is ON/OFF for the next time. The potentiometer can help you to adjust volt amp in a simple and fast way.
【Protection】 It has reverse-connect protection, short circuit protection and over current protection. When you connect the input wire reversely or short circuit, the module will not burn. And roate the CC potentiometer to set over current protection value you want.
【Application】 The volt conversion board can be used for 5v 6v 9v 12v 24V 30V 32V 3a 5a 10a devices, like solar panel, lab, experiment, RV, All-Terrain Vehicle, car, battery charger, LED stripes, etc.

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Customer reviews

1,609 global ratings

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Customers say

Customers appreciate the transformer's performance and adjustable voltage. They find it works well for charging batteries from solar panels, powering LED lights, and converting 13.8VDC to 9VDC at 1A. Many are satisfied with its value for money and display quality. However, there are mixed opinions on assembly, build quality, voltage, and display accuracy.

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Works well Voltage adjustment Value for money Display quality Ease of assembly Build quality Voltage Voltage display

149 customers mention "Works well"135 positive14 negative

Customers are satisfied with the transformer's performance. They say it works well for charging SLA batteries from a solar panel, powering LED lights, and converting 13.8VDC to 9VDC at 1A. The transformer is reasonably priced and solves their needs.

"...Overall, this appears to be a fine product, and I have rated at 5 stars." Read more

"...I need (adjustable, display, etc), is reasonably priced, and solved the problem!" Read more

"This works well. It pushes the voltage up or down. I have it hooked to a 12v battery and then attached a female USB port to the output at 5vdc...." Read more

"...It worked well for my application to reduce the lithium battery voltage down to 12 volt car lead battery levels...." Read more

59 customers mention "Voltage adjustment"43 positive16 negative

Customers appreciate the adjustable voltage feature of the transformer. They can control the amp or wattage, set the current limit, and tune the speakers as needed. The adjustment is easy to make with their fingers, not a small screwdriver. The regulation seems fine, but during startup and shutdown the output voltage may vary.

"...It seems well made, has many more features than I need (adjustable, display, etc), is reasonably priced, and solved the problem!" Read more

"This works well. It pushes the voltage up or down. I have it hooked to a 12v battery and then attached a female USB port to the output at 5vdc...." Read more

"...Setting the output current is a little tricky: you need to use a ammeter that is actually connected in series to complete the circuit, almost like a..." Read more

"...Adjustment is very fine, to the hundredth of a volt...." Read more

58 customers mention "Value for money"53 positive5 negative

Customers appreciate the value for money of the transformer. They mention it works great for the price, has a nice feature of buck and boost functionality, and is a useful purchase that can be used for various projects.

"...many more features than I need (adjustable, display, etc), is reasonably priced, and solved the problem!" Read more

"...They are relatively inexpensive, and for my uses have not given me any problems...." Read more

"...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...." Read more

"Overall very good product...." Read more

47 customers mention "Display quality"43 positive4 negative

Customers appreciate the display quality of the transformer. They find the digital readout helpful and like the slick case design. The display is clear, with easy-to-read blue backlighting for input and output voltage and current readings. The function buttons work well, and the metal knobs have knurling on the side for a nice finish. Overall, customers are satisfied with the product's appearance and functionality.

"...I am generally very pleased with the quality and appearance of the buck boost converter board...." Read more

"...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..." Read more

"Nice looking unit!..." Read more

"...Overall it's a neat product, dirt cheap, and this hobbyist will keep it around for some random projects, but 35W (even 25W) is a bit much for it." Read more

81 customers mention "Ease of assembly"56 positive25 negative

Customers have different views on the transformer's assembly. Some find it easy to assemble and use, with basic instructions and straightforward voltage settings. Others mention that there is little assembly required, but no instructions are provided.

"...This is easy to understand as other companies provide controllers that is hard to understand and not really sure if those will do what I need...." Read more

"...It came unassembled and was easy to put together...." Read more

"...A diode was also included but not referenced in the instructions. Maybe I missed it but not sure why it was in the package...." Read more

"...So in my case setting the CC to 8A has a display value 7.96A. Easy-to-use. READ THE INSTRUCTIONS" Read more

64 customers mention "Build quality"38 positive26 negative

Customers have mixed opinions about the build quality of this DC converter. Some find it well-made with a great screen and well-soldered components, holding out great for projects. Others mention that it's not good at all, with quality control issues like arriving with a capacitor. Overall, opinions are divided on the build quality.

"...Voltage readouts for input and output are very accurate and stable. Overall, this appears to be a fine product, and I have rated at 5 stars." Read more

"...I tried to offset Amp deficiency by upping to 13.4 Volts and still faulted out. Power was from a M18 milwaukee 5amphr battery. Not a fan!" Read more

"...It seems well made, has many more features than I need (adjustable, display, etc), is reasonably priced, and solved the problem!" Read more

"...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...." Read more

64 customers mention "Voltage"38 positive26 negative

Customers have different views on the voltage. Some find it maintains a high voltage and provides enough power for their needs. Others report issues like losing power, the output voltage dropping off quickly, and the device not providing enough power for their needs, draining the battery when there is no sun.

"...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..." Read more

"...battery power the input the display is on all the time, wasting battery power...." Read more

"...Adjustment is very fine, to the hundredth of a volt. Output was very steady and voltage remained where I set it even after disconnecting and..." Read more

"...Some items cannot handle the higher lithium voltage and this brings down the voltage and controls the amps to provide the needed wattage...." Read more

51 customers mention "Voltage display"28 positive23 negative

Customers have mixed opinions about the voltage display. Some say the input voltage reading is accurate, while others report issues with the output current reading being incorrect or not displaying at all. The display has two numbers, the top number showing the input voltage.

"...It seems well made, has many more features than I need (adjustable, display, etc), is reasonably priced, and solved the problem!" Read more

"...As I reported, there appear to be inaccuracies in the ammeter current readings for unit output, but these seem to be on the order of 15ma or so..." Read more

"...The display has 2 numbers, it shows input voltage as the top number (so I can monitor my battery charge) and the bottom number can switch between..." Read more

"...Recently, one was received that did not control the current, but I think that was a fluke!..." Read more

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Top reviews from the United States

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Anne F. Tschanz
More About the Ammeter Readings
Reviewed in the United States on October 22, 2024
Size: Buck Boost 5.5-30V to 0.5-30V 4AVerified Purchase
As reported earlier, I am generally very pleased with the quality and appearance of the buck boost converter board. As I reported, there appear to be inaccuracies in the ammeter current readings for unit output, but these seem to be on the order of 15ma or so (high). For very small loads on the order of 20ma, this can be significant. However, for larger loads to 2A or 3A, this may be completely acceptable. Voltage readouts for input and output are very accurate and stable. Overall, this appears to be a fine product, and I have rated at 5 stars.

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A. Jones
Fixed my flickering LED lights in my camper van
Reviewed in the United States on January 23, 2024
Size: Buck Boost 5.5-30V to 0.5-30V 4AVerified Purchase
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!

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CWR
Needs a switch to turn off the display.
Reviewed in the United States on September 4, 2024
Size: Buck Boost 5.5-30V to 0.5-30V 4AVerified Purchase
This works well. It pushes the voltage up or down. I have it hooked to a 12v battery and then attached a female USB port to the output at 5vdc. But once you connect battery power the input the display is on all the time, wasting battery power. It's easy enough to put an inline switch in, but it could use one added on in the next version.

The display has 2 numbers, it shows input voltage as the top number (so I can monitor my battery charge) and the bottom number can switch between amps and watts. The same applies to the output voltage.

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N T
Easy to Adjust. Works great.
Reviewed in the United States on June 3, 2024
Size: Buck 5.3-32V to 1.2-32V 12AVerified Purchase
Didn’t realize assembly would be required. No soldering, just attaching precut acrylic to provide protection to the module and sticking on a heat sink.

Once assembled I ran 20v in and adjusted to get 12 volts out.

Adjustment is very fine, to the hundredth of a volt. Output was very steady and voltage remained where I set it even after disconnecting and recharging the battery I was using as a power source several times.

Instructions were unfortunately the typical poor English you receive with this sort of thing. A diode was also included but not referenced in the instructions. Maybe I missed it but not sure why it was in the package.

Overall this was a huge improvement over using an inverter to create 110v only to have another power supply turn that into 12 volts. Run time that way was 5ish hours. Keeping everything DC I get a runtime of about 10 hours

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D. Pon
This was not confusing.
Reviewed in the United States on February 7, 2023
Size: Buck 5.3-32V to 1.2-32V 12AVerified Purchase
Good to reduce and control both voltage and amperage. To the first time buyer, the instructions can be overwhelming, but after testing it out and putting it to use it is easy to understand how this item works. It worked well for my application to reduce the lithium battery voltage down to 12 volt car lead battery levels. Some items cannot handle the higher lithium voltage and this brings down the voltage and controls the amps to provide the needed wattage. I've order several to deal with items I don't want to "fry" and they all work like a charm. Recently, one was received that did not control the current, but I think that was a fluke! I will receive a replacement soon, and I ordered an additional one as well.

This is easy to understand as other companies provide controllers that is hard to understand and not really sure if those will do what I need. To the common person, this one is easy. Voltage in, Voltage out. Then change the amps to get the needed wattage. That's how a simple common person thinks, and in the application, it powers my RV fan.

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6 people found this helpful

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Matthew
If you can conceive of it, it exists…
Reviewed in the United States on May 7, 2022
Size: Buck 5.3-32V to 1.2-32V 12AVerified Purchase
I had a need to charge some LiFePo cells, so I was searching for a variable power supply capable of some amps. Most use AC, but my solar setup runs 24V. The prospect of going from 24VDC -> AC -> 3.65VDC, surely there had to be a way to remain fully within the DC realm. And this lovely device fit the bill. A DC buck converter is the name of what I wanted, and curiously, there doesn’t seem to be a super wide selection.

I must say, this device is well done enough for my purposes. Could the terminals be a bit more robust? Sure. Could they ship a more expensive version with better cooling to support more amps for sustained periods of time? Sure. Is there a way to recalibrate it so the display voltage matches the actual voltage? Would be nice, although not that far off (definitely have a voltmeter on hand to check).

But: for what they have, and what I need, it definitely serves its purposes.

This is actually my second, I accidentally fried the output on my first by connecting a power source, but the thing still powers on and recognizes input voltage, and didn’t just burn up entirely. Maybe I will investigate what was damaged and resolder parts to revive it. But I was that satisfied with the operation of the first that when my own error occurred, my need persisted, and I had no reservations buying another. They are relatively inexpensive, and for my uses have not given me any problems.

They also have some other devices (buck, boost, and I think a buck/boost), with different ranges and throughputs, so depending on your needs, they may have a model that best suits your particular use case.

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4 people found this helpful

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Raymond Roland
Variable power settings
Reviewed in the United States on October 17, 2024
Size: Buck 5.3-32V to 1.2-32V 12AVerified Purchase
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

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Top reviews from other countries

Brandon
Works well. Converts my 20V, 5A input to 5V 12A
Reviewed in Canada on October 31, 2024
Size: Buck 5.3-32V to 1.2-32V 12AVerified Purchase
I bought a USB-C trigger module and programmed it to output 20V, 5A. However, I needed more amps to heat 18AWG Nichrome wire to 300C.
This buck converter took the input of 20V, 5A (Measured with a Fluke 117 Multimeter) and outputted 5V, 12A consistently (also measured with the same multimeter).

I tweaked it later on to output 5V, 8A which is more than enough for my application. It works flawlessly.

A bit on the pricey side, but it is flawless.

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Brad
Good quality for the price point
Reviewed in Canada on April 16, 2022
Size: Buck Boost 5.5-30V to 0.5-30V 4AVerified Purchase
Works as it should. Handy item to have around your bench.

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Finally I got you little Casio😻
Exlent working
Reviewed in India on October 26, 2023
Size: Buck 5.3-32V to 1.2-32V 12AVerified Purchase

The media could not be loaded.

Hi guys 😁
I'm using this buck converter as regulator power supply for my Li-ion battery packs
And working perfectly
This save's me lot of money and time

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Finally I got you little Casio😻

Exlent working
Reviewed in India on October 26, 2023
Hi guys 😁
I'm using this buck converter as regulator power supply for my Li-ion battery packs
And working perfectly
This save's me lot of money and time

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Walter Trovo
Works great for moderate power
Reviewed in Japan on June 9, 2024
Size: Buck Boost 5.5-30V to 0.5-30V 4AVerified Purchase
The converter is well designed, including the plastic case. The additional barrel connector at the input is very convenient. Not the best in terms of efficiency, but considering it is a buck-boost, it is still good. Great value for the money IMHO!

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AmzWow19
Delivery & quality
Reviewed in Australia on February 16, 2021
Size: Buck 5.3-32V to 1.2-32V 12AVerified Purchase
Delivery and product quality A+++. Thank you

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