200W 20A DC-DC Buck Converter Step Down Module Constant Current LED Driver Module


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SKU: 815794
  1. High Power DC-DC Step Down Module
  2. Input Voltage: 6-40V DC
  3. Output Voltage: 12-36V DC
  4. Max Output Current: 20A
  5. Efficiency: 97%

 349.00  450.00

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The 200W 20A DC-DC Buck Converter Step Down Module Constant Current LED Driver Module can be used to get adjustable output voltage ranges from 12V to 36V. The module provides a wide range of current output up to 4A. With the heat sink mounted, it can easily manage to run high-power applications continuously (provided that for continuous high-power output, you need to use a cooling fan on the heat sink).

The 200W 20A DC-DC Buck Converter module is made from a dedicated benchmark IC and high-precision current sensing resistor, proving a more stable constant current (when 20°C to 100°C constant current 15A, temperature drift less than 1%), and therefore it is particularly most suitable for LED driver applications. The output current of the module can be raised up to 20 A (for continuous use it is recommended up to 3A with an additional cooling fan).


1. High-power LED driver.
2. Lithium battery(or lead accumulator) charge.
3. Vehicle-mounted power supply.
4. Low voltage system power supply.
5. 6V, 12V, 14V, 24V battery charge.
6. On-board laptop power supply.
7. regulated power supply.
8.Low voltage power supply system.

Note: If the module temperature exceeds 65ºC, please add a cooling fan,  (It be used at room temperature without a fan)

How to do the Module adjustment:
  1. When the module output voltage cannot be adjusted (the output voltage is always equal to the input voltage) Please adjust the potentiometer counterclockwise 20 laps (20 turns) or more till it works.?
  3. When adjusting the blue potentiometer, please use a multimeter to monitor the voltage
  4. The trimmer nearest the voltage output adjusts the output CURRENT (CC)
  5. The trimmer nearest the voltage input adjusts the output VOLTAGE (CV)


  1. Scope: High-power LED constant current driver, rechargeable lithium batteries 4V, 6V, 12V, 14V, 24V
  2.  Constant Output current value of 15A.
  3. Output Ripple: about the ripple 50mV (without noise)
  4. Operating temperature: -10 ℃ to + 75 ℃

Package Includes:

1 x 200W 20A DC-DC Buck Converter Step Down Module Constant Current LED Driver Module

SKU: 815794 Categories: ,
Input Voltage (V)


Output Voltage(V)

12 to 36

Max. Output Current (A)


Conversion Efficiency


Switching Frequency

180 KHz

PCB Size ( L x W ) mm

60 x 45

Shipping Weight 0.12 kg
Shipping Dimensions 7 × 6 × 4 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Questions and answers of the customers

  1. 0 votes
    Q Is it short circuit protected??? answer now
    Asked by tpatra257 on August 25, 2023 4:05 pm

    For your query please refer datasheet of the mo... Read more

  2. 0 votes
    Q Is this module 5 or 6 capacitors at output ? answer now
    Asked by HarshaV on February 8, 2022 9:18 pm

    It is 5 capacitor at output 

  3. 0 votes
    Q What is the least adjustable current? answer now
    Asked by manuchevli on August 23, 2021 12:41 pm

    The least adjustable current output for this mo... Read more

  4. 0 votes
    Q Can I vary the output current of this module ? answer now
    Asked by akashrnath2000 on August 14, 2021 12:06 pm

    Yes, you can vary the output current of this mo... Read more

  5. 0 votes

    The 300W 20A DC-DC Buck Converter Step Down Mod... Read more

  6. 0 votes

    No, it does not have auto cut off feature after... Read more

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Country Of Origin: China