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Compact black wall adapter with voltage selector switch and Micro USB cable

BASEUS

BASEUS 12W Adjustable Voltage AC Adapter 3V-12V 1A Micro USB

SKU CH-CF3Y-G3G6F

Adjustable 3 V to 12 V AC adapter delivers up to 12 W via Micro USB for household electronics

  • Product typeAC Adapters
  • Adjustable output from 3V to 12V for versatile device compatibility
  • 12W maximum power supports a wide range of household electronics
  • Includes 7 interchangeable DC plugs to fit various equipment
  • Universal AC input from 100V to 240V works worldwide
  • Centre-positive polarity matches most common device requirements

Universal Adjustable Voltage Adapter

This 12W AC adapter supplies selectable DC output from 3V to 12V in seven steps, with a maximum current of 1A. It suits household electronics such as routers, small audio gear or legacy devices that need a specific low voltage. The unit accepts 100V to 240V mains at 50Hz or 60Hz, so it works worldwide without a separate converter. Polarity is centre-positive and eight swappable plugs cover common barrel sizes.

Thermals Noise and Power Draw

At 12W maximum output the adapter runs warm but stays within normal limits for a compact linear supply. No fan is fitted, so operation is completely silent in a quiet room. Input current stays low thanks to the 100V-240V switching front end, keeping standby draw minimal when the load is idle. The supplied switch key lets you lock the voltage selector against accidental changes.

Sustained Load Behaviour

Continuous operation at the full 1A rating is supported as long as the connected device does not exceed 12W. Voltage regulation holds steady across the 3V, 4.5V, 5V, 6V, 7.5V, 9V and 12V settings during extended use. The adapter is not intended for loads above 1A or for charging lithium packs without their own protection circuit. Builders needing higher current or a different connector type should look elsewhere.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $25.99
Cheaper than about 60% of the 27,790 comparable items (median $30.99).

Specifications

Product
Product typeAC Adapters

Questions about this item

How do I set the correct voltage on this adapter, and what step do people often miss?

Use the switch key to select 3V, 4.5V, 5V, 6V, 7.5V, 9V or 12V, then confirm the DC plug polarity is centre positive before connecting your device.

Which parts will need replacement after extended use?

The 8 interchangeable DC plugs and the Micro USB cable can wear out; the switch key may also loosen over time.

What is the first limit reached when running this adapter continuously at full load?

The 1000mA maximum output current caps sustained power at 12W, so any device drawing more will trigger protection or voltage drop.

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