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Two small rectangular waterproof modules with USB ports

GCON

GCON 2PCS Waterproof DC-DC Converter 12V to 5V USB 3A 15W

SKU CH-6KMB-6CKFK

Converts 12 V DC input to 5 V USB output at up to 3 A with waterproof protection

  • Converts 12 V input to stable 5 V USB output
  • Accepts wide 8–20 V DC range for flexible installation
  • Delivers up to 3 A for fast device charging
  • Built-in overload and voltage protection guards connected gear
  • Waterproof module suits outdoor or damp environments

Dual 12V to 5V USB power modules

This pair of waterproof DC-DC converters steps a 12-volt source down to a steady 5-volt USB output rated at up to 3 amps. Each unit delivers 15 watts and includes overload, over-current, over-voltage and under-voltage protection. The non-isolated design suits automotive, marine or solar installations where a compact 5-volt supply is needed.

Replaces bare voltage regulators

The modules remove the need to build or solder a custom buck circuit when converting 12-volt battery or bus power to USB voltage. They are worth fitting when a project demands a ready-to-mount, weather-sealed solution with built-in fault protection instead of a bare regulator IC and discrete components.

Fits 8-to-20-volt input systems

Each converter accepts a wide DC input range from 8 to 20 volts, so it connects directly to standard 12-volt vehicle or solar wiring without extra conditioning. The USB output frees the builder from wiring a separate 5-volt regulator, while the waterproof housing allows mounting in exposed locations such as engine bays or deck boxes.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $22.99
Pricier than about 65% of the 1,761 comparable items (median $18.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What input-voltage range does the 12 V-to-5 V converter accept?

The module operates from DC 8 V to 20 V, so any source in that window will power it.

How do you wire the converter, and which connection is most often reversed?

Connect the input leads to the 8–20 V source observing polarity, then plug the USB device into the 5 V output; reversing the input polarity is the common mistake.

When should the converter be replaced?

Replace a unit if it no longer delivers a steady 5 V at up to 3 A, if the waterproof seal is damaged, or if the built-in overload or over-voltage protection has tripped repeatedly.

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