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Green led lights on when testing output voltage; red LED lights on when testing input voltage. Press the button for 1 to 4 seconds, voltmeter would be shut off when releasing your hands; the voltmeter is very accurate. Lm2596 buck converter stably output, the output current is 2a normal and stable, voltage conversion efficiency is up to 96%.
When using it for the first time, it is necessary to turn the potentiometer counterclockwise more than 10 times. The digital can be turn on or off, the voltmeter error±01v, self calibration, note: To ensure the accuracy of the voltmeter, to show input or output voltage. The output voltage is 1. 25v-37v continuously adjustable, the input voltage must be 1V higher than the output voltage, the maximum is 3A. With advanced voltage microprocessor, the input voltage is DC 0~40V, please ensure that the input voltage is above 4V.


Display - large clear digital LCD display voltage & current value simultaneously. General use - as ordinary step-down module with over-current protection; As constant current LED driver module; DIY a solar power controller, etc.
Features - constant current/voltage mode; voltage calibration & current calibration; USB interface; Protective case; Short-circuit protection; Over-temperature protection; Input reverse connection protection. 3. The case is packaged unassembled to avoid damage during transit. 2. Please carefully read the user’s manual, if your input is lower than that, especially the “Cautions” before using.

If enhance heat dissipation, this converter can reach 12A and 160W output. And roate the cC potentiometer to set over current protection value you want. Easy operation a user manual will be included in package, which can help you easier to operate.
If you want to reach maximum power 160W, current precision is 0005a. Lcd screen can display input/output voltage, which is protective. Acrylic case can keep the converter board away from dust, please improve heat dissipation. Application the volt conversion board can be used for 5v 6v 9v 12v 24v 30V 32V 3a 5a 10a devices, RV, car, lab, battery charger, LED stripes, experiment, like solar panel, All-Terrain Vehicle, etc.

3v, power transformers, 36V 24V turn and so on. To ensure accuracy voltmeter, make sure the input voltage of 4. 5v and above.
Input voltage must be higher than the output voltage of 1. 5v or more. Output power 20w, 15W, please enhance heat dissipation over. High conversion efficiency, on average 88% efficiency and the input and output voltage, current, pressure related. Uses a more advanced microprocessor voltage voltmeter error ± 005v, range 0 ~ 40V.

Easy to diyconnect to power source, you need to contrarotate about 7-15 circles before the voltage starts ramping down, clockwise to step up voltage and counterclockwise to step-down voltage.
5v higher than the output voltage, no boost. Output voltagedc 1. 5v to 35v voltage is continuously adjustable, maximum output current is 3A. 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, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 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.
Input voltagedc 3. 2v to 35v input voltage must be 1. 5v higher than the output voltage, no boost. Mini size45 * 23 * 14 mm with potentiometer. Output voltagedc 1. 25v to 30v voltage is continuously adjustable, maximum output current is 3A. Factory default stays a high voltage, 1 circle means +/- 1V. Suitable for various electronic projects. 6pcs included.



1. DORHEA
#ad
Dorhea LM2596 DC-DC Buck Converter Step-Down Regulator 4.0-40V to 1.25-37V DC 36V to 24V to 12V to 5V Volt Power Supply Module with LED Voltmeter Display Compatible with Car Motor Buck
#adDORHEA #ad - Press the button next to voltmeter to test input voltage or output voltage. The input voltage must be higher than the output voltage. Note: this is a buck module. A radiator is required for long-term work above 2A/15W. The input and output connectors cannot be reversed.Green led lights on when testing output voltage; red LED lights on when testing input voltage. Press the button for 1 to 4 seconds, voltmeter would be shut off when releasing your hands; the voltmeter is very accurate. Lm2596 buck converter stably output, the output current is 2a normal and stable, voltage conversion efficiency is up to 96%.
More information #ad
Analog control: using a mini screwdriver to increase or decrease output voltage by adjusting the screw, clockwise to step up voltage and counterclockwise to step down voltage. When using it for the first time, it is necessary to turn the potentiometer counterclockwise more than 10 times. The digital can be turn on or off, the voltmeter error±01v, self calibration, note: To ensure the accuracy of the voltmeter, to show input or output voltage. The output voltage is 1. 25v-37v continuously adjustable, the input voltage must be 1V higher than the output voltage, the maximum is 3A. With advanced voltage microprocessor, the input voltage is DC 0~40V, please ensure that the input voltage is above 4V.
Brand | DORHEA #ad |
Manufacturer | DORHEA #ad |
Weight | 0.25 Pounds |
Part Number | D13539-1 |
More information #ad
2. Generic
#ad
5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module
#adGeneric #ad - Output: dc 1. 5-35 v voltage is continuously adjustable, maximum output current is 3 A. Easy work: convenient to accurately adjust the output voltage with a mini screwdriver. Input: dc 3-40 v input voltage must be 1.More information #ad
5 v higher than the output voltage, no boost. Application: widely used for DIY mobile power, power buggies, monitor power supply, communications equipment supply, etc. Features: thickened circuit boards, Short circuit and over-temperature protection.Brand | Generic #ad |
Manufacturer | Does Not Apply #ad |
Part Number | NA |
Model | NA |
More information #ad
3. 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 - Note - 1. You can find the pdf instructions on this page -- Product information -- Product guides and documents -- User Manual PDF. It needs to be manually installed. Output voltage is set as around 20v by default, please turn potentiometer anticlockwise for 10 laps or more until voltage changes.Display - large clear digital LCD display voltage & current value simultaneously. General use - as ordinary step-down module with over-current protection; As constant current LED driver module; DIY a solar power controller, etc.
More information #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. 3. The case is packaged unassembled to avoid damage during transit. 2. 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
4. DROK
#ad
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
#adDROK #ad - Characteristics this buck converter is equipped with lcd display, output current and output power. The potentiometer can help you to adjust volt amp in a simple and fast way. Voltage precision is 005v, acrylic Case and Heat Sink. Heat sink can keep module 120W for long-time using in a low temperature.If enhance heat dissipation, this converter can reach 12A and 160W output. And roate the cC potentiometer to set over current protection value you want. Easy operation a user manual will be included in package, which can help you easier to operate.
More information #ad
The button can control ouput voltage ON/OFF status, and you can set the default output state is ON/OFF for the next time. Protection it has reverse-connect protection, short circuit protection and over current protection. If you want to reach maximum power 160W, current precision is 0005a. Lcd screen can display input/output voltage, which is protective. Acrylic case can keep the converter board away from dust, please improve heat dissipation. Application the volt conversion board can be used for 5v 6v 9v 12v 24v 30V 32V 3a 5a 10a devices, RV, car, lab, battery charger, LED stripes, experiment, like solar panel, All-Terrain Vehicle, etc.
Brand | DROK #ad |
Manufacturer | DROK #ad |
Weight | 0.88 Pounds |
Part Number | REES-1822 |
Model | REES-1822 |
More information #ad
5. Songhe
#ad
Songhe LM2596S LM2596 with LED Display Voltmeter Buck Converter DC-DC 4.0-40V to 1.25-37V 2A Voltage Adjustable Board Step Down Module Power Supply Module 5pcs
#adSonghe #ad - Input voltage must be higher than the output voltage of 1. 5v. This module can be applied to fields in the input voltage is higher than the step-down output voltage, such as batteries, 24V switch 5V, 12V switch 5V, 24V Car T of the power equipment industry buck, 24V switch 12V, DIY adjustable power supply, 12V switch 3.3v, power transformers, 36V 24V turn and so on. To ensure accuracy voltmeter, make sure the input voltage of 4. 5v and above.
More information #ad
With a voltage meter and voltmeter displays self-calibration. Adjustable output voltage range of 1. 25v ~ 37v continuously adjustable. Touch of a button to switch the input or output voltage measurements and has a light show which is being measured voltages, and save the settings, even the power off and then on. Input voltage must be higher than the output voltage of 1. 5v or more. Output power 20w, 15W, please enhance heat dissipation over. High conversion efficiency, on average 88% efficiency and the input and output voltage, current, pressure related. Uses a more advanced microprocessor voltage voltmeter error ± 005v, range 0 ~ 40V.
Brand | Songhe #ad |
Manufacturer | Teyleten Robot #ad |
Height | 0.47 Inches |
Length | 2.6 Inches |
Weight | 0.05 Pounds |
Width | 1.42 Inches |
Part Number | C75 |
Model | LM2596 |
More information #ad
6. Valefod
#ad
Valefod 3 Pack LM2596 DC to DC Voltage Regulator 4-40V to 1.5-35V Buck Converter with LED Display
#adValefod #ad - Suitable for various electronic projects. Factory default stays a high voltage, 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, 1 circle means +/- 1V.Easy to diyconnect to power source, you need to contrarotate about 7-15 circles before the voltage starts ramping down, clockwise to step up voltage and counterclockwise to step-down voltage.
More information #ad
3pcs included. Mini size57*36*13 mm with potentiometer. Input voltagedc 4v to 40v input voltage must be 1. 5v higher than the output voltage, no boost. Output voltagedc 1. 5v to 35v voltage is continuously adjustable, maximum output current is 3A. 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.
Brand | Valefod #ad |
Manufacturer | Valefod #ad |
Weight | 0.05 Pounds |
Part Number | VA-0162-BL |
More information #ad
7. Valefod
#ad
Valefod 6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.2-35V to 1.25-30V Buck Converter DIY Power Supply Step-Down Module
#adValefod #ad - 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, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 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
Input voltagedc 3. 2v to 35v input voltage must be 1. 5v higher than the output voltage, no boost. Mini size45 * 23 * 14 mm with potentiometer. Output voltagedc 1. 25v to 30v voltage is continuously adjustable, maximum output current is 3A. Factory default stays a high voltage, 1 circle means +/- 1V. Suitable for various electronic projects. 6pcs included.
Brand | Valefod #ad |
Manufacturer | Valefod #ad |
Weight | 0.03 Pounds |
Part Number | VA-139-52 |
Model | VA-HW-411 |
More information #ad
8. BULVACK
#ad
BULVACK 10 Pack LM2596 DC-DC Buck Converter Step Down Module Power Supply DIP Output 1.25V-30V 3A
#adBULVACK #ad - High-q inductors with high power output LED indicator. All solid capacitors using SANYO. 36u thick circuit boards. Input voltage range: dc 3.More information #ad
2v to 35v input voltage must be higher than the voltage output to 1. 5v or more can not be boosted. Output: 1. 25v to 30v dc voltage is continuously adjustable, high efficiency and maximum output current of 3A.Brand | BULVACK #ad |
Manufacturer | Zixtec #ad |
Height | 1 Inches |
Length | 1 Inches |
Weight | 0.29 Pounds |
Width | 1 Inches |
Part Number | ZT001 |
Model | ZT001 |
Warranty | No |
More information #ad
9. Maxmoral
#ad
Maxmoral 2pcs DC-DC Buck Converter Power Module 3A Adjustable Step-Down LM2596 Voltage Regulator 24V to 12V 5V 3V
#adMaxmoral #ad - 01uf high frequency bypass capacitor, can effectively filter out high frequency noise. Turn the potentiometer counterclockwise 1 cycle, it may step-down approx 1V voltage. Input voltage: dc 3v-35v, output voltage: dc 1.More information #ad
25v-35v continuously adjustable, high effeciency, max output current up to 3A. High precision potentiometer, factory default is approx 18V. Two wire connection Mode: Solder and Welding Pin. Adopting sanyo solid-state capacitor, 36u thickened circuit board, high Q value large power inductance, with LED indicator.Brand | Maxmoral #ad |
Weight | 0.1 Pounds |
Part Number | LM2596-3A-2 |
More information #ad
10. DROK
#ad
LM2596 Voltage Regulator Board, Buck Converter 24v to 5v, 12V to 5 V LED Power Supply Transformer, DROK DC 4-32V to 1.25-30V 3A Adjustable Step Down Module
#adDROK #ad - Adjustable output - output voltage can be adjusted by screw. Parameter - input voltage range dc 4v-32v; output voltage range DC 1. 25v-300v; max output current 3A. Display - led displays output voltage, output current and input voltage switched by MODE button.More information #ad
Protection - input reverse connection protection; short circuit protection. On/off switchable output - output voltage can be turned on/off by button; when the output is off, the screen will display OFF.Brand | DROK #ad |
Manufacturer | DROK #ad |
Part Number | 180057AFA |
More information #ad