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Product guide

Weishuo 12V 20A 240W Switching Power Supply

Weishuo 12V 20A 240W Switching Power Supply is an AC-to-DC unit listed for indoor use. Its listing specifies a 110V–230V AC input and adjustable 12V DC output, with a recommendation to keep long-term connected-device demand at or below 80% of rated power.

At a glance

  • Auto-adapting 110V–230V AC input is listed as compatible with UK 230V mains.
  • 12V DC output is specified at up to 20A and 240W, with ±10% voltage adjustment.
  • The listing names short-circuit, overload and overvoltage protection.
  • Manufacturer-listed applications include LED strips, 3D printers, CCTV, amplifiers and computer projects.
Price
£15.19Save 20%

Reference price: £18.99

Price checked: 13 Nov 2026

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Pros and cons

Pros

  • Adjustable output voltage offers some flexibility for compatible 12V equipment.
  • The stated 240W maximum gives a clear upper rating, while the listing recommends a lower load for stable long-term operation.

Cons

  • Indoor-only use excludes outdoor and damp installations.
  • The listing recommends professional installation by a qualified electrician, so this may not suit buyers seeking a ready-to-connect consumer adapter.

Technical specifications

9 specifications
Identity
BrandWeishuo
Power and output
Power configurationAC
Input and outputAC 110V-230V input (compatible with UK 230V mains), Output: DC 12V 20A (240W max power).
Output adjustmentThe output voltage supports ±10% adjustment
Long-term load guidanceensure the connected device's power does not exceed 80% of the rated 240W for stable long-term use
Protection and compliance
Listed protectionsShort Circuit Protection, Overload Protection, and Over Voltage Protection
Specification metRoHS
Dimensions and installation
Dimensions listed4.9D x 11W x 4.9H centimetres
Use and installationDesigned for indoor use only, not suitable for outdoor or damp environments.

What to know before buying

  • The manufacturer recommends keeping connected-device power at or below 80% of 240W for stable long-term use. It also advises checking connections before powering on and recommends installation by a qualified electrician. Do not use outdoors or in damp environments.

Who is it for?

A good fit for

  • Indoor projects needing a 12V DC supply, such as compatible LED strips, CCTV equipment or hobby electronics.
  • Buyers who can confirm their equipment's voltage, current and power requirements and arrange suitable installation.

Less suited to

  • Outdoor or damp locations.
  • Equipment requiring a different output voltage or more power than the listed supply can provide.
Weishuo 12V 20A 240W Switching Power Supply · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 34 ratings
  • 5 stars72%72%
  • 4 stars14%14%
  • 3 stars4%4%
  • 2 stars5%5%
  • 1 star5%5%

Aggregate ratings lean positive, with most ratings in the five-star category, but a smaller share are lower. Without customer comments, the reasons behind those ratings are unknown. For buyers considering an indoor 12V supply, the rating distribution does not confirm installation ease, output performance or suitability for a particular device.

Frequently asked questions

Can it be used with UK mains?

The listing specifies 110V–230V AC input and says it is compatible with UK 230V mains, with automatic input adaptation.

What is the maximum listed output?

The listing gives a 12V DC output at 20A, with 240W maximum power. It recommends keeping connected-device demand at or below 80% of 240W for stable long-term use.

Can the output voltage be adjusted?

Yes. The listing says output voltage supports ±10% adjustment. Confirm the required voltage for your device before connecting it.

Is it suitable for outdoor use?

No. The listing says it is for indoor use only and is not suitable for outdoor or damp environments.

Weishuo 12V 20A 240W Switching Power Supply · photo 3
Additional product photo 3
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