We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four green circuit boards with silver heatsinks and screw terminals

GCON

GCON 20A 300W Step-Down Module 6-40V to 1.2-36V (4pcs)

SKU CH-Q7KG-V0E9V

Pack of four step-down modules converting 6–40 V input to 1.2–36 V output at up to 20 A and 300 W with 96 % efficiency

  • Wide 6 V to 40 V input range suits many DC sources
  • Adjustable 1.2 V to 36 V output with constant-current control
  • Up to 96 % efficiency at 20 A converting 24 V to 12 V
  • Dual 75 V 80 A MOS tubes plus twin heatsinks keep temperatures low
  • 30 A screw terminals give secure high-current wiring

Step-Down Module 4-Pack

This pack contains four adjustable buck converter modules rated for 20A and 300W. Each unit accepts an input range of 6V to 40V and delivers a regulated output from 1.2V to 36V. They suit hobbyists, engineers and technicians building custom power supplies for LED lighting, motor drives, solar projects or bench testing.

Integration And Connectivity

The modules feature 30A screw terminals for secure high-current wiring without soldering. Dual onboard heatsinks dissipate heat during sustained loads, reducing the need for external cooling in many enclosures. An input range spanning 6V to 40V allows direct connection to 12V or 24V battery banks, vehicle electrical systems or regulated DC sources.

Capacity And Limits

Peak efficiency reaches 96% when converting 24V to 12V at 20A, keeping losses low for thermal management. The 75V/80A dual MOS transistors provide ample voltage headroom above the 40V input ceiling. Continuous operation at the full 20A rating requires adequate airflow; projects demanding more than 300W or input above 40V will exceed the module’s specifications.

Highlights

  • Wide 6 V to 40 V input range suits many DC sources
  • Adjustable 1.2 V to 36 V output with constant-current control
  • Up to 96 % efficiency at 20 A converting 24 V to 12 V
  • Dual 75 V 80 A MOS tubes plus twin heatsinks keep temperatures low
  • 30 A screw terminals give secure high-current wiring

Specifications

No published specifications for this item yet.

Questions about this item

At what sustained load does the 96 % efficiency figure apply?

The 96 % efficiency is measured at 20 A while converting 24 V to 12 V.

How much heat must the two heatsinks dissipate during all-day operation?

Two heatsinks are fitted to extend service life; with up to 96 % efficiency at 20 A the remaining loss appears as heat.

What voltage source and wire gauge are needed for the 30 A screw terminals?

A 6–40 V DC source is required; the screw terminals accept conductors rated for 30 A.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.