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LD-4B 2.4A 17mm Buck Driver 3V-16V


1 mode default


*Suitable for 1-2-3 18650, 16340 or 18350

*Input voltage: 3-16V

*Drives LEDs up 6.6V

*Output current 2.4A

*Constant current circuit

*PCB Diameter: 17mm

*Total height: 10mm

*Gold plated contacts

*Copper leads already soldered

*Always starts in High mode

*Reverse polarity protection

*The driver does not have an input voltage monitoring function, it is recommended to be used only with protected cells.


You can power 2*XP-L / 2*XP-G2 / 2*XP-E2 in series, MK-R 6V,  other higher Vf LEDs  while using 2-3*18650 or 2-3*18350 cells in series.

Not suitable for MT-G2 LED.


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  • Model: LD-4B
  • Shipping Weight: 8g
  • 43 Units in Stock

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