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Three small green circuit boards with USB ports and screw terminals

GCON

GCON 12V to 5V 3A 15W Buck Converter Module (3 Pieces)

SKU CH-JCH5-YS2RY

A 12V to 5V buck converter module delivering up to 3A and 15W with 96% conversion efficiency and intelligent protection, supplied as a three-piece pack

  • Converts 12 V to 5 V at up to 3 A for 15 W output
  • 96 % conversion rate reduces heat and wasted energy
  • Built-in chip guards against over-voltage, over-current, over-temperature and short circuits
  • Powers car GPS, dash cams, radios, LED displays and similar 12 V accessories
  • Device draw must stay below 15 W; not compatible with some Samsung phones

12V to 5V Buck Converter Module

This pack contains three identical buck converter modules that step a 12V DC supply down to a regulated 5V output. Each unit delivers up to 3A and 15W, making it suitable for powering USB-charged devices such as GPS units, dash cameras, car audio players and similar 5V equipment from a vehicle electrical system.

Wire terminal installation and common issues

The modules use a simple wire interface; connect the 12V source to the input leads and the 5V load to the output leads, observing polarity markings on the board. The integrated protection chip shuts the converter down automatically if it detects over-voltage, over-current, over-temperature or a short circuit, so the most frequent problem is simply reversing the input wires or exceeding the 15W limit.

Checks before ordering

Verify that the equipment you intend to power draws less than 15W at 5V, otherwise the converter will trigger its protection and shut down. Confirm your source is a stable 12V DC supply — higher or lower input voltages are not supported. Note that the supplier states the module is not compatible with certain Samsung phones, so avoid using it for those devices.

Highlights

  • Converts 12 V to 5 V at up to 3 A for 15 W output
  • 96 % conversion rate reduces heat and wasted energy
  • Built-in chip guards against over-voltage, over-current, over-temperature and short circuits
  • Powers car GPS, dash cams, radios, LED displays and similar 12 V accessories
  • Device draw must stay below 15 W; not compatible with some Samsung phones

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the 96% conversion rate is being achieved after wiring the module?

Measure the 12V DC input and 5V USB output under load with a multimeter; the output should stay near 5V while delivering up to 3A, and the no-load current should read around 10mA.

What connectors are included in the three-piece pack and what must I supply?

Each module has a USB output socket and bare-wire input leads; you must provide a 12V DC source and the device cable that plugs into the USB port.

Which of the three identical modules should I use for a device drawing close to 15W?

All three modules are the same 15W maximum rating; pick any one and ensure the connected device stays below 15W and is not a Samsung phone listed as incompatible.

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