Best Power Transformers Deals Online in the UK (10 Deals Found)

Last Updated - 15/12/2025 Sort By:

Best Choice
Zolt

New
Zolt 24W Universal Power Adapter AC DC 3V 4.5V 5V 6V 7.5V 9V 12V Power Supply Transformer Adaptor with 8 DC Plugs for El
Power Spec.: AC input: 100V-240V, 50/60Hz; DC output voltage: 3V 4.5V 5V 6V 7.5V 9V 12V; Output Current: 2A Max.; DC Con

£12.90
Outtag

New
12W Universal Power Adapter AC Charger - 12V 9V 7.5V 6V 5V 4.5V 3V 1000mA 1A Multi Voltage DC Power Supply Portable DC P
【COMPATIBILITY】The Universal Power Adapter Charger Includes 8 Dc Connector Tips Which Works For Various Appliances Inclu

£14.49
EFISH

New
EFISH International Power Adapters Multifunctional Portable Power Transformers (Included USB),AC Supply Adapter 100-240V
AC Input Voltage:100-240V ~ 50/60Hz;DC Output Voltage:3V/4.5V/5V/6V/7.5V/9V/12V. Output Current:2.5A(2500mA). Output Pow

£11.99
Best Value
SIGANDG

New
SIGANDG 31V 3.6W Transformer Plug IP20 Power Supply Adapter with 8 Lighting Modes, Timer and Memory Function for Christm
Specifications: Input: 220V-240V Frequency:50-60Hz Current:0.12A, Output: 31V Rated power: 3.6W .Transformer plug adapte

£9.99
WDKXCN

New
WDKXCN 200W Step Down Power Voltage Converter Transformer, Step Down Transformer 220V/240V to 110V/120V, US to UK Voltag
STEP DOWN TRANSFORMER: The voltage converter is a 200W multifunctional and efficient device that can convert the input v

£19.90
10% Off
iPalamila

New
200W Step-Down Power Supply voltage converter 220V/240V to 110V/120V(UK Plug), Smart and Efficient Temperature-Protected
【𝐇𝐈𝐆𝐇𝐋𝐘 𝐄𝐅𝐅𝐈𝐂𝐈𝐄𝐍𝐓 𝐀𝐍𝐃 𝐏𝐑𝐀𝐂𝐓𝐈𝐂𝐀】This 200W step-down voltage converter is equipped with a UK plu

£20.74 £22.99
13% Off
vapourd

New
300W Step Down Power Voltage Converter Transformer (UK Plug) 220v/240v to 110v/120v, Intelligent Efficient Adapter Trave
⚠️【Special Note】The power converter cannot be overloaded. If it is overloaded for a long time, it will directly cause th

£25.99 £29.99
BOLWEO

New
31V Transformer Plug for Christmas Lights, BOLWEO LED Transformer Power Supply Adapter with 8 Modes,Timer,Memory,IP20 fo
【Specifications】:Output Voltage:31V, Rated Power:6W, Please check the voltage,power and connector(+/-) of the 31v led dr

£10.99
yowin

New
yowin Transformer Plug for Christmas Lights 24V 6W Plug Fairy Lights Adapter, 8 Modes Replacement Plug with Timer, 3 Pin
NOTE: The voltage mismatch will cause your fairy light to only blink and not work properly! Please check the connection

£9.99
BODYA

New
BODYA 2Pcs 31V 3.6W Power Supply Adapter Transformer For LED Fairy Light Waterproof IP44
Brand new and high quality.

£8.26

10 Power Transformers deals are available from: Amazon stores, starting from £8.26.
The biggest discount we found is 13% on 300W Step Down Power Voltage Converter Transformer (UK Plug) 220v/240v to 110v/120v, Intelligent Efficient Adapter Travel Power Adapter for WIFI, POS Machine, Power Bank at Amazon.
The lowest price we found is £8.26 while the highest is £25.99.
Prices for the best Power Transformers deals average at £14.52.
Last updated on December 15, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Power Transformers.