3-12V / 5A Power Adapter – Precision Voltage and Speed Control with Clear Digital Display

Versatile DC Adapter for Electronics, Motors, Heaters and Lab Applications

This adjustable DC power adapter is your universal helper in electronics, model making, and hobbies. With the ability to generate stable DC voltage, smoothly adjustable from 3 to 12 volts, and a maximum output current of up to 5 amperes, it covers a vast range of applications. The large digital display shows the output voltage, making it an extremely convenient and precise tool.

Key Features & Purpose:

• Smoothly Adjustable Voltage & High Power: Via a potentiometer or buttons, you can easily set the exact voltage your device needs – from 3V for small electronic projects to 12V for more demanding loads. With a current of 5A (which at 12V means up to 60W of power), it can also power more demanding devices like LED strips, fans, or small motors.

• Universal Input & Standard Output: The adapter can be plugged into a mains voltage from 100V to 240V AC, making it suitable for use worldwide. It comes with a standard DC connector 5.5mm x 2.1mm (outer/inner diameter), which is the most common type for many devices.

• Multi-Functional Application: Perfect for:

  • Powering and testing electronic circuits and prototypes (Arduino, Raspberry Pi, sensor modules).

  • Powering LED lighting (strips, lamps) with the ability to adjust brightness via voltage.

  • Speed control of small DC motors (models, fans).

  • Charger for batteries and accumulators that require constant voltage.

  • Educational and laboratory purposes.

• Safety & Accuracy: The device offers overload and short-circuit protection. The output voltage accuracy is ±5% (no load). The length of the power cable is 1 meter.

IMPORTANT: Always make sure the polarity (+, -) of the connector matches that of your device, and never set a voltage higher than the maximum allowed for it.

Technical Parameters:

• Input: AC 100-240V, 50/60 Hz (universal)

• Output: DC 3V – 12V (adjustable)

• Max. Output Current: 5A

• Max. Power: up to 60W (at 12V)

• Connector: DC 5.5mm x 2.1mm

• Cable Length: 1 m