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300W 20A DC-DC Buck Converter, CC CV Constant Current LED Driver, 6-40V to 1.2-36V Adjustable Step Down Voltage Regulator Module with Electrolytic Capacitor & Dual Heatsinks

Limited time offer, ends 08/31 By Warm Cozy Harbor

  • Delivers up to 300W power with 20A max output current (15A recommended for continuous use), ideal for high-power LEDs and heavy-duty projects.
  • Wide Input & Adjustable Output
  • Input: DC 6-40V; Output: DC 1.2-36V (adjustable via CV potentiometer), compatible with 12V/24V systems.
  • CC/CV Dual Mode & High Efficiency
  • Constant Current (CC) for LEDs, Constant Voltage (CV) for batteries; efficiency up to 96% (24V to 12V@20A).
  • Premium Components & Low Ripple
  • Built-in high-frequency electrolytic capacitors and dual MOS tubes (75V/80A) for stable output with ripple 50mV.
  • Dual Heatsinks & Protection
  • Dual heatsinks for excellent heat dissipation; self-recovery short-circuit and over-current protection.
  • Easy Wiring & Compact Size
  • 30A screw terminals for safe high-current connection; compact 60×53×27mm design.
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Overview
Specs
Reviews

300W 20A DC-DC buck converter is a high-performance step-down power module designed for LED driving, battery charging, and DIY power projects. It features a wide input voltage range of 6-40V DC and an adjustable output voltage of 1.2-36V DC, supporting both constant current (CC) and constant voltage (CV) modes.

Equipped with high-quality electrolytic capacitors and dual 75V/80A MOSFETs, the module ensures low ripple (50mV) and stable output. The dual heatsink design provides efficient heat dissipation, enabling reliable operation even at high loads. With up to 96% conversion efficiency, it minimizes energy loss during voltage regulation.

The converter offers self-recovery short-circuit and over-current protection for safety. The 30A screw terminals allow easy and secure wiring. Compact size (60×53×27mm) makes it suitable for various space-constrained applications.

Specifications

  1. Input Voltage: DC 6-40V (recommended 10-40V)
  2. Output Voltage: DC 1.2-36V (adjustable)
  3. Output Current: 20A (max), 15A (continuous recommended)
  4. Output Power: Max 300W
  5. Efficiency: Up to 96% (24V to 12V@20A)
  6. Output Ripple: 50mV
  7. Control Mode: CC (Constant Current) / CV (Constant Voltage)
  8. Protection: Short-circuit (self-recovery), over-current
  9. Heat Dissipation: Dual aluminum heatsinks
  10. Wiring: 30A screw terminals
  11. Dimensions: 60×53×27mm / 2.36×2.08×1.06"
  12. Weight: ~80g


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