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Any problems you can contact us and we will try our best to resolve it till you satisfied. Updated version: updated from lm2596 and better than it, with reverse voltage protection, over-temperature and short-circuit protection, thus making it much safer to use.

Easy to diyconnect to power source, using a mini screwdriver to increase or decrease output voltage by adjusting the screw on the blue potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step-down voltage.
Output voltagedc 1. 25v to 36v voltage is continuously adjustable, maximum output current is 5A. Input voltagedc 4v to 38v input voltage must be 1. 5v higher than the output voltage, no boost. Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 1 circle means +/- 1V. 2 sets included.

Mini and portable: 63 x 2 x 10mm, suitable for various narrow installation space and small case. Input port: 5. 5mm×2. 1mm dc socket and wiring terminal, can also be connected at the same time; Output Port: USB and wiring terminal, each way makes the module work, can output power at the same time.

You can find the pdf instructions on this page -- Product information -- Product guides and documents -- User Manual PDF.
The case is packaged unassembled to avoid damage during transit. 2. It needs to be manually installed. General use - as ordinary step-down module with over-current protection; As constant current LED driver module; DIY a solar power controller, etc. Please carefully read the user’s manual, if your input is lower than that, especially the “Cautions” before using.



2v/3. 5a/18w. The voltage reducer is with USB interface and quick charge identifying chip, and is compatible with Android and Apple. Our buck voltage regulator is user-friendly, accompany with DC interface and connecting terminals, make it easier to be connected to different devices.

The voltage reducer is with USB interface and quick charge identifying chip, and is compatible for Android and Apple.

Maintain stable output voltage and limit the output current over a range of input voltages. Input voltage: 8-36v dc, 50w/3. 5a sustained whichever is lower, output Voltage: 1. 25-32v dc, max load: 75w/5a Peak, amps or watts.

Convenient to operate: the step-down voltage regulator power module has designed with power indicator, short circuit protections limit current 8A and over-temperature protection which means the output will be automatically turned off after over-temperature.
8% and the voltage regulation rate shall not exceed 08%. Module parameters: input voltage: 4v - 38v note:input voltage not over 38v, output voltage: 1. 25v - 36v dc continuously adjustable, output current: 0A- 5A Recommended to use within 4. 5a, output power: within 75W. Mini size: each regulator power module measures approx: 5. 1 x 2.
1. dkplnt
#ad
D-PLANET 4-PACK 5A DC-DC Adjustable Buck Converter 4~38v to 1.25-36v Step Down Power Supply High Efficiency Voltage Regulator Module
#addkplnt #ad - Output voltage range:1. 25-36vdc adjustable. Output current: 0-5A, Output power: 75W. High conversion efficiency up to 96%. You can request a refund for any single module and no need to return it.Any problems you can contact us and we will try our best to resolve it till you satisfied. Updated version: updated from lm2596 and better than it, with reverse voltage protection, over-temperature and short-circuit protection, thus making it much safer to use.
More information #ad
Input voltage range:4~38V Note:input voltage not over 38V. 100% satisfication service: if there are any problem with our products, please feel free to contact us.Brand | dkplnt #ad |
Manufacturer | D-PLANET #ad |
Height | 0.67 Inches |
Length | 3.15 Inches |
Weight | 0.04 Pounds |
Width | 1.57 Inches |
Part Number | 4 |
Model | 5864305253 |
More information #ad
2. Valefod
#ad
2 Pack DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display
#adValefod #ad - Mini size62*38*14 mm with potentiometer. High precisionthe buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors that can effectively filter out high frequency noise.Easy to diyconnect to power source, using a mini screwdriver to increase or decrease output voltage by adjusting the screw on the blue potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step-down voltage.
More information #ad
Suitable for various electronic projects. Output voltagedc 1. 25v to 36v voltage is continuously adjustable, maximum output current is 5A. Input voltagedc 4v to 38v input voltage must be 1. 5v higher than the output voltage, no boost. Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 1 circle means +/- 1V. 2 sets included.
Brand | Valefod #ad |
Manufacturer | Valefod #ad |
Weight | 0.07 Pounds |
Part Number | VA-0189 |
Model | VA-0189 |
More information #ad
3. UCTRONICS
#ad
9-36V Step Down to USB 5V Transformer Dual Output Voltage Regulator Board 2 Pack, UCTRONICS DC 6V 9V 12V 24V to DC 5V 5A Buck Converter Module
#adUCTRONICS #ad - High-efficient transformation: the module adopts the new technology synchronous rectification, which improves conversion efficiency obviously and expands the working voltage and current.Mini and portable: 63 x 2 x 10mm, suitable for various narrow installation space and small case. Input port: 5. 5mm×2. 1mm dc socket and wiring terminal, can also be connected at the same time; Output Port: USB and wiring terminal, each way makes the module work, can output power at the same time.
More information #ad
Power supply: dc 9-36v; output voltage: 5-5. 3v; output power: 18w to 30w input dc 9-24v, output 5. 2v/6a; input dc 24-32V, output 5. 2v/5a; input dc 32-36V, output 5. 2v/3. 5a. Application: as a usb 5v buck converter, DIY a phone charger, refit car charger, supply power to raspberry pi 4 b.Brand | UCTRONICS #ad |
Manufacturer | UCTRONICS #ad |
Weight | 0.1 Pounds |
Part Number | U6223 |
More information #ad
4. DROK
#ad
DC Buck Module, DROK Adjustable Buck Converter Step Down Voltage Regulator 6V-32V 30V 24V 12V to 1.5-32V 5V 5A LCD Power Supply Volt Reducer Transformer Module Board with USB Port Protective Case
#adDROK #ad - Parameter - input voltage range dc 6v-32v; output voltage dc 1. 5v-32v; max output current 5A, recommend use of within 4. 5a; max output power 75W, recommend use of within 50W. Features - constant current/voltage mode; voltage calibration & current calibration; USB interface; Protective case; Short-circuit protection; Over-temperature protection; Input reverse connection protection.You can find the pdf instructions on this page -- Product information -- Product guides and documents -- User Manual PDF.
More information #ad
Note - 1. Display - large clear digital LCD display voltage & current value simultaneously. 3. Output voltage is set as around 20v by default, please turn potentiometer anticlockwise for 10 laps or more until voltage changes. The case is packaged unassembled to avoid damage during transit. 2. It needs to be manually installed. General use - as ordinary step-down module with over-current protection; As constant current LED driver module; DIY a solar power controller, etc. Please carefully read the user’s manual, if your input is lower than that, especially the “Cautions” before using.
Brand | DROK #ad |
Manufacturer | DROK #ad |
Weight | 0.15 Pounds |
Part Number | 180080AFA |
Model | 180080AFA |
More information #ad
5. DROK
#ad
DROK DC-DC Buck Converter 12V/24V to 5V 5A/25W Step-Down Voltage Transformer Volt Regulator Power Supply Inverter Module Voltage Drop Transfer Board SR Waterproof for Car Auto Vehicle Motor etc
#adDROK #ad - With short-circuit protection, over-current protection, over-temperature protection, over-voltage protection. Tiny in size and light in weight, hence is convenient to carry out for usage. It can be widely used in bus, solar generate electricity, large trucks, CMB, motor, display screen of bus and taxi, car audio device.More information #ad
The module is waterproof, anti-shock, and moisture-proof and has stronger durability. Small heating; high transfer efficiency of 96% max; the power draw is about 15MA when there is no load;adopts synchronous rectification technology.Brand | DROK #ad |
Manufacturer | DROK #ad |
Part Number | 90581 |
Model | 90581 |
More information #ad
6. Dasiter
#ad
5AMax 10A DC 5V-30V to 1.25-30V Voltage Regulator Constant Voltage Constant Current CV CC Auto Step-Up/Down Boost Converter Solar Charging Power Supply Module 150W, Auto Boost Buck Converter
#adDasiter #ad - The maximum output power is up to 300W with a efficiency of 93%. Including short circuit protection function, more safe and reliable to use. Input and output use high frequency low resistance capacitors, output ripple is very low.More information #ad
The input voltage of the power module is large and the output voltage is stable. The power module uses a large heat sink to ensure heat dissipation.Brand | Dasiter #ad |
Manufacturer | Dasiter #ad |
Height | 1.7 Inches |
Length | 2.99 Inches |
Weight | 0.2 Pounds |
Width | 1.77 Inches |
Part Number | DA118-Buck Boost Module |
More information #ad
7. DROK
#ad
DROK 5A USB Voltage Regulator DC 9V-36V Step Down to DC 5V-5.3V 5.2V 3.5-6A Volt Transformer Power Supply Module for Phone Fast Charging, Buck Converter 12v to 5v
#adDROK #ad - Note: input different voltage will output different power: input dc 9-24v, output 5. 2v/5a/25w; input dc 32-36V, output 5. 2v/6a/30w; input dc 24-32V, output 5.2v/3. 5a/18w. The voltage reducer is with USB interface and quick charge identifying chip, and is compatible with Android and Apple. Our buck voltage regulator is user-friendly, accompany with DC interface and connecting terminals, make it easier to be connected to different devices.
More information #ad
The step down regulator adopts synchronous rectification scheme to provide wide voltage range, large current and high efficiency. Drok buck converter input voltage is dc 9v-36v, output voltage is 5. 2v 5v-5. 3v available according to your input voltage.Brand | DROK #ad |
Manufacturer | DROK #ad |
Weight | 0.05 Pounds |
Part Number | 200217 |
Model | 200217 |
More information #ad
8. ACEIRMC
#ad
ACEIRMC 2pcs Buck Converter 12v to 5v 5A USB Voltage Regulator DC 9V-36V Step Down to DC 5V-5.3V 5.2V 3.5-6A Volt Transformer Power Supply Module for Phone Fast Charging 2pcs
#adACEIRMC #ad - 5a usb voltage regulator dc 9v-36v step down to dc 5v-5. 3v 5. 2v 3. 5-6a volt transformer Power Supply Module for Phone Fast Charging. The step down regulator adopts synchronous rectification scheme to provide wide voltage range, large current and high efficiency.The voltage reducer is with USB interface and quick charge identifying chip, and is compatible for Android and Apple.
More information #ad
Buck converter input voltage is dc 9v-36v, output voltage is 5. 2v 5v-5. 3v available according to your input voltage. Input different voltage will output different power: input dc 9-24v, output 5. 2v/6a/30w; input dc 24-32V, output 5. 2v/5a/25w; input dc 32-36V, output 5. 2v/3. 5a/18w.Brand | ACEIRMC #ad |
Manufacturer | ACEIRMC #ad |
Weight | 0.05 Pounds |
Part Number | 16528 |
More information #ad
9. JacobsParts
#ad
JacobsParts XL4015 5A DC Buck Step Down Voltage Converter Constant Current Adjustable Power Module 2-Pack
#adJacobsParts #ad - Great for general voltage conversion, micro-controllers, battery conversions, powering raw LEDs, battery charging, automotive electronics, and electronic projects.Maintain stable output voltage and limit the output current over a range of input voltages. Input voltage: 8-36v dc, 50w/3. 5a sustained whichever is lower, output Voltage: 1. 25-32v dc, max load: 75w/5a Peak, amps or watts.
More information #ad
Dimensions: 51x26. 3x14mm, xl4015 ic, 180KHz Switching Frequency. Conversion efficiency: up to 95%, our test result: 24V->12V1A: 92. 7%. Applying reverse polarity voltage to the input or output may damage the module. Current limiting function requires at least 5. 6v input. Input must be at least 1v more than the output voltage.Brand | JacobsParts #ad |
Manufacturer | JacobsParts #ad |
Weight | 0.09 Pounds |
Part Number | DCMOD-B-2PK |
Model | DCMOD-B-2PK |
More information #ad
10. MELIFE
#ad
36V Step Down Power Supply Voltage Regulator Power Module, 4 Pack 5A DC-DC Adjustable Buck Converter, MELIFE XL4015 4, 38V to 1.25
#adMELIFE #ad - Update version: these dc-dc adjustable buck converters contain reverse voltage protection, output power and efficiency, with both input and output voltage range, over-temperature and short-circuit protection, safer and better than LM2596 version.Convenient to operate: the step-down voltage regulator power module has designed with power indicator, short circuit protections limit current 8A and over-temperature protection which means the output will be automatically turned off after over-temperature.
More information #ad
Conversion efficiency: our 5a dc-dc adjustable buck converter can withstand working temperature range from minus 40 to 85 degrees Celsius and support working frequency of 180KHz, current and pressure drop, output voltage, its conversion efficiency is 96% higher the specific efficiency is related to input, the load adjustment rate shall not exceed 0.88% and the voltage regulation rate shall not exceed 08%. Module parameters: input voltage: 4v - 38v note:input voltage not over 38v, output voltage: 1. 25v - 36v dc continuously adjustable, output current: 0A- 5A Recommended to use within 4. 5a, output power: within 75W. Mini size: each regulator power module measures approx: 5. 1 x 2.
Brand | MELIFE #ad |
Manufacturer | MELIFE #ad |
Weight | 0.18 Pounds |
Part Number | M15549 |
More information #ad