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Blue rectangular buck converter module in acrylic case with LCD screen and heat sink, 90 grams

DROK REES-1822 5.3-32V to 1.2-32V 12A Buck Converter with LCD Display

SKU CH-9WJN-HMKPX

Adjustable buck converter steps DC 5.3-32V down to 1.2-32V at up to 12A with LCD readout of voltage, current and power

  • Colorblue-1
  • Dimensions5.0 in x 5.0 in x 5.0 in
  • Weight90 grams
  • Wide input range 5.3-32V suits many DC sources
  • Adjustable output 1.2-32V with 0.05V precision
  • Built-in LCD shows voltage, current and power readings
  • 120W continuous or 160W with extra cooling
  • Reverse, short-circuit and over-current protection built in

DROK REES-1822 Buck Converter

This adjustable step-down module accepts a DC input from 5.3 V to 32 V and delivers a variable output from 1.2 V to 32 V. It is built for engineers, hobbyists and technicians who need a compact, protected power supply for bench testing, RV solar setups, golf-cart accessories or custom LED drivers. The acrylic case and heat sink keep the board clean and cool during extended use.

Continuous 120 W or 160 W with extra cooling

With natural convection the converter sustains 8 A and 120 W continuously. Improving heat dissipation raises the limit to 12 A and 160 W. The input voltage must remain at least 0.8 V above the desired output, so the module cannot regulate when the differential drops below that threshold. Over-current, short-circuit and reverse-polarity protections prevent damage during wiring errors.

LCD readout and manual controls

The onboard display shows input and output voltage, current and power with 0.05 V and 0.005 A precision. A push-button toggles output on or off and sets the default power-up state, while potentiometers adjust voltage and the over-current trip point. The included user manual explains wiring and calibration so the unit can be commissioned quickly without additional software.

Highlights

  • Wide input range 5.3-32V suits many DC sources
  • Adjustable output 1.2-32V with 0.05V precision
  • Built-in LCD shows voltage, current and power readings
  • 120W continuous or 160W with extra cooling
  • Reverse, short-circuit and over-current protection built in

Specifications

BrandDROK
ModelREES-1822
Part NumberREES-1822
Colorblue-1
Dimensions5.0 in x 5.0 in x 5.0 in
Weight90 grams

Questions about this item

What does the 12A rating mean when the converter is installed in a real system?

The 12A rating is reachable only when you add extra cooling; with natural convection the module runs at 8A continuous.

What input-to-output voltage gap does the buck topology require in practice?

The input must stay at least .8V above the desired output for the regulator to stay in regulation.

How much clearance does the 5.0 in square acrylic case need for mounting?

The case measures 5.0 in on each side and weighs 90 grams, so allow at least that footprint plus room for wiring.

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