5V 4A 20W AC to DC Switching Power Supply Converter~ 3286
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A compact, efficient and highly protected DC power supply converting AC mains to a stable 5V 4A output — trusted by makers, electricians and trade professionals for powering LED strips, displays, microcontrollers and low-voltage electronics. The ultra-thin aluminium alloy build and wide 110–220V input make it equally suited to DIY projects and permanent professional installations across the UK and internationally.
Key Features:
- Triple Protection Built-In – Overload, overvoltage and short-circuit protection safeguard both the power supply and connected devices, reducing the risk of costly damage during continuous operation.
- Switching Regulator Technology – Significantly more energy-efficient than traditional linear power supplies, generating less heat and delivering a cleaner, more stable DC output under varying load conditions.
- Honeycomb Aluminium Alloy Housing – Ultra-thin shell with integrated heat-dissipation vents maintains safe operating temperatures and extends the unit's working lifespan in enclosed or compact spaces.
- Wide Input Voltage Range – Accepts AC 110V–220V at 50/60Hz, making it fully compatible with UK mains and suitable for international use without modification.
- Screw Terminal Connections – Secure, tool-tightened wiring points for reliable connections in both temporary test rigs and permanent fixed installations.
- Compact Form Factor – Space-saving design fits neatly inside enclosures, control panels, display units and cabinetry where full-size transformers won't fit.
Technical Specifications:
| Input Voltage: | AC 110V – 220V |
| Input Frequency: | 50 / 60Hz |
| Output Voltage: | DC 5V |
| Output Current: | 4A |
| Total Wattage: | 20W |
| Connection Type: | Screw Terminals |
| Shell Material: | Aluminium Alloy |
| Protections: | Overload / Overvoltage / Short Circuit |
| Type: | Universal Regulated Switching Power Supply |
| Supplied As: | 1 x Power Supply Unit |
Perfect For:
Powering 5V LED strip lighting runs, LED signage and display panels in retail, hospitality and event environments. Ideal as a reliable bench power supply for electronics prototyping, Arduino and Raspberry Pi projects, and communication devices. Trade electricians will find the screw terminals and compact housing particularly useful for integrating into control panels, junction enclosures and bespoke display builds. Also suited to audio amplifiers, household appliances and any 5V DC application requiring stable, protected power.
✓ Same Day Dispatch when ordered before 2pm
✓ Free UK Delivery on orders over £25
✓ UK Stock | Trade Accounts Available
Note: Colour may vary slightly from images. Please allow ±0.2–0.5cm measurement tolerance. We recommend not booking an electrician or fitter until all items have been received in satisfactory condition.
Hurry Up! Only 58 left in stock!
Estimate delivery times: 1-3 days (UK), 5-10 days (Netherlands), 7-10 days (Spain), 7-10 days (Belgium). 5-10 days (Europe)
Return within 30 days of purchase. Duties & taxes are non-refundable.
- Available: instock




















