Name: 12V 4A Power Adapter UK Plug | 5.5x2.1mm DC | Sun Cheong
Brand: Sun Cheong Computer Company Limited
SKU: 21PA000055
Price: 95.0 HKD
Availability: InStock

Short Product Description

Need a stable and reliable replacement power supply? This 12V 4A Power Adapter featuring a standard 5.5mm x 2.1mm DC plug delivers consistent, clean power to your essential devices. Built to rigorous safety standards with a UK CA certified 3-pin plug, it is the perfect heavy-duty power solution for CCTV surveillance systems, LED light strips, IT networking gear, and DIY electronics. Backed by Sun Cheong's 20+ years of hardware expertise, you can trust this adapter for uninterrupted 24/7 performance.

Key Features

High-Capacity 4A Output: Delivers up to 48W of robust power, providing ample headroom for high-draw devices like motorized CCTV cameras or long LED strips.
Standard 5.5mm x 2.1mm DC Plug: Widely compatible barrel connector (center positive) fits most generic and branded 12V electronics seamlessly.
UK CA & CE Certified: Independently tested for safety, featuring a standardized UK 3-pin plug to ensure secure wall socket connections.
Built-in Circuit Protection: Automatically protects your expensive hardware from sudden power surges, over-current, and short-circuit damage.
Compact & Thermal-Efficient Design: The sleek, flame-retardant white housing dissipates heat efficiently, making it safe for continuous 24/7 use.
Extended Cable Reach: Designed with a durable, flexible power cord to easily reach wall outlets without straining the connection.

Full Product Description

Uninterrupted Power for Your Most Critical Electronics

Whether you are powering a high-end Dahua CCTV surveillance system, a custom LED lighting setup, or essential networking routers, unstable power can lead to device failure or shortened lifespans. This 12V 4A Power Adapter is engineered to deliver a consistent 48 Watts of smooth DC power, ensuring your sensitive electronics operate at peak performance without voltage drops or flickering.

Universal Compatibility with 5.5x2.1mm DC Jack

Finding the right replacement charger doesn't have to be a headache. Equipped with the industry-standard 5.5mm x 2.1mm DC barrel connector (center positive), this adapter is universally compatible with a vast array of household and enterprise electronics. From powering up your Arduino projects to reviving an old monitor, this single adapter serves as a versatile backbone for your hardware ecosystem.

Engineered for Safety and Longevity

Safety is non-negotiable when it comes to electrical components. This power supply features built-in safeguards against over-voltage, over-current, and short circuits. Proudly bearing the UK CA and CE certification marks, the flame-retardant white casing stays cool under continuous load. Whether deployed in a home office or a commercial server rack, it provides peace of mind for continuous, round-the-clock operation.

The Sun Cheong Guarantee: 20 Years of Trust

As a staple in the Sham Shui Po tech community for over two decades, Sun Cheong Computer ensures every component we stock meets strict quality and durability standards. Need it urgently for a project? Take advantage of our O2O (Online-to-Offline) service—order online and pick it up instantly at our physical retail store for immediate technical support.

Technical Specifications

Brand / Model: SIMSUKIAN / SK05T-1200400B.
Input Voltage: AC 100-240V ~ 50/60Hz, 1.5A Max.
Output Voltage: DC 12V.
Output Current: 4A (4000mA).
Maximum Power: 48W.
Connector Type: 5.5mm outer diameter x 2.1mm inner diameter.
Polarity: Center positive (+).
Plug Type: Standard UK 3-Pin (Type G).
Certifications: UKCA, CE.
Color: White.

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Q1: Can I use this 12V 4A adapter for a device that only requires 12V 2A?
A: Yes, absolutely. The voltage (12V) must match exactly, but the current (Amperage) is drawn by the device. Your 2A device will only pull 2A from this 4A adapter. Using a higher amperage adapter is actually safer and runs cooler because it isn't working at maximum capacity.

Q2: How do I know if the 5.5mm x 2.1mm plug will fit my device?
A: 5.5x2.1mm is the most common size for 12V electronics (CCTV, routers, LED strips). You can check your device's manual, measure your old plug's diameter, or bring your device to our Sham Shui Po retail store where our technicians can help you verify the fit instantly.

Q3: Is this power adapter safe to leave plugged in 24/7 for security cameras?
A: Yes. This adapter is built for continuous, heavy-duty operation. It features built-in thermal protection and holds standard safety certifications (UK CA, CE), making it ideal for always-on enterprise and home security systems.

Target Users / Applications

Security & Enterprise: Perfect for Dahua and other CCTV DVR/NVR systems, IP cameras, and access control panels requiring stable 24/7 power.
IT & Networking: Reliable replacement power for wireless routers, network switches, and broadband modems.
Gamers & PC DIY: Powering custom PC case lighting, external hard drive enclosures, or specialized motherboard testing peripherals.
Makers & Students: Ideal for STEM projects, powering Arduino/Raspberry Pi motor shields, and custom robotics requiring a 12V punch.