# Power supply 12V 2A, 5.5x2.1 plug

> Power supply that converts 220VAC into stable 12VDC, with a maximum output current of 2A. Equipped with a 5.5x2.1mm male plug for quick connection, suitable for modules, LED strips or other DIY projects requiring a 12V supply. Intended for integration into electronic projects, not a charger for finished consumer products. Recommended for users with basic electronics knowledge.

- Page: https://sigmanortec.ro/en/power-supply-12v-2a-55x21-plug
- Price: 45.30 RON
- Availability: In stock; 1-2 zile
- Reference: 7754017 · EAN: 5942325045234
- Category: Electronic components > Power Supply
- Specifications: Adjustment Type: Fixed; Maximum Output Current: 2 A; Output Voltage: 12VDC; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.12 kg
- Updated: 2026-10-16
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:32 (Europe/Bucharest)

## Description

Power supply for electronic projects, converts 220VAC to stable 12VDC, providing up to 2A for modules, LED strips or DIY equipment. It is equipped with a 5.5x2.1mm male plug for quick connection and wide compatibility, ideal for integration into technical assemblies where 12V power is required.
The 220VAC to 12VDC 2A switching power supply is a high-quality power supply, designed for safe and long-lasting operation in electronic projects that require a 12V DC voltage. It connects directly to the 220VAC mains and provides 12VDC at the output, with a current of up to 2A, through a standard 5.5x2.1mm male plug, one of the most common DC connector formats in electronics.
The main features are the build quality, which makes it a reliable choice compared to generic power supplies, the switching operation, which makes it light and compact, without the heavy transformer of classic power supplies, and with better efficiency than them, direct conversion from 220VAC to 12VDC, output current of up to 2A, meaning a power of up to 24W, 5.5x2.1mm male plug compatible with DC female sockets of the same type, and plug-and-play connection, without additional wiring to the mains.
The power supply is compatible with Arduino Uno and Arduino Mega 2560 boards, which have a 5.5x2.1mm DC jack, as well as with 12V LED strips, 12V relay modules, fans, small pumps, DC motors, and other modules that accept 12VDC power through this type of connector.
Specifications:
Power supply type: Switching
Supply voltage: 220VAC
Output voltage: 12VDC
Output current: 2A
Maximum power: 24W
Connector: 5.5x2.1mm male
Outer connector diameter: 5.5mm
Inner connector diameter: 2.1mm
Usage:
Check that the powered equipment operates at 12VDC and has a compatible 5.5x2.1mm female connector.
Check that the current requirement of the circuit does not exceed 2A. For long-term operation, it is recommended to leave a reserve of about 20%, meaning a consumption of no more than 1.6A.
Before first use, check the polarity of the connector with a multimeter and compare it with the one required by the powered equipment.
With the power supply disconnected from the outlet, insert the 12V plug into the powered equipment.
Connect the power supply to the 220VAC outlet.
When disconnecting, first unplug the power supply from the outlet and only then remove the plug from the equipment.
In the case of Arduino boards, 12V is at the upper limit of the recommended range for the DC jack, and the regulator on the board may heat up if you power large loads from the 5V pin. For such loads, use a separate power supply.
Warning
The power supply connects to the 220VAC mains voltage, which is dangerous and can cause electric shock. Do not open the power supply housing, do not use it if the cable or housing is damaged, and do not expose it to moisture, water, or high temperatures. Make any modifications to the circuit only with the power supply unplugged. Keep the power supply out of reach of children.