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Black rectangular AC/DC adapter with LCD display and 14 interchangeable tips

BFKK

BFKK 3-24V 3A 72W Universal Power Adapter with 14 Tips

SKU CH-K378-X1MB2

Adjustable 3–24V 72W AC/DC adapter with 14 tips, polarity converter and test lead for household electronics

  • Adjustable 3 V to 24 V output suits many devices
  • 72 W maximum power handles demanding electronics
  • Four protection circuits prevent voltage, current, temperature and short-circuit faults
  • Fourteen interchangeable tips plus polarity converter cover most connectors
  • LCD readout shows selected voltage to avoid accidental damage

Universal Power Adapter 3V to 24V

This adjustable AC/DC adapter delivers DC output from 3V to 24V at up to 3A and 72W, with an LCD display showing the selected voltage. It suits indoor devices such as LED strips, 3D printers, smart speakers, wireless routers, DC motors and DVR or NVR surveillance systems that require up to 72W.

14 Tips and Polarity Converter Included

The package provides 14 DC tips covering barrel sizes from 6.5x4.4mm down to 2.5x0.7mm plus Micro-USB, Type-C and a DC terminal connector. A reverse polarity converter and an alligator clip test lead are also supplied, allowing quick adaptation without soldering.

Check Device Voltage and Polarity Before Use

Verify that your equipment operates between 3V and 24V and draws no more than 72W; the supplier recommends staying below 80% of full load. Confirm the required tip size and centre polarity, then set the correct voltage on the adapter before connecting to avoid damage.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $41.99
Pricier than about 74% of the 3,875 comparable items (median $23.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the adapter is delivering the correct voltage after connecting it?

The built-in LCD display shows the selected output voltage so you can confirm it matches the device requirement before plugging in.

Which tips and accessories are included in the box?

The package contains the 3–24 V 3 A adapter, 14 DC tips covering barrel sizes from 2.5×0.7 mm to 6.5×4.4 mm plus Micro-USB, Type-C and a DC terminal connector, a reverse polarity converter, an alligator clip test lead and a male DC pigtail cable.

How do I decide which voltage setting to use for my device?

Check the device label for its required DC voltage between 3 V and 24 V and its current draw up to 3 A, then set the adapter to that exact voltage; the unit is rated for a maximum of 72 W and the manufacturer recommends staying below 80 % of full load.

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