Best Power Transformers Deals Online in the UK (25 Deals Found)

Last Updated - 04/10/2025 Sort By:

Best Choice
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

£20.99 £26.99
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15% 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

£25.49 £29.99
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New
200W Power Voltage Converter Transformer Step-Down 220V/240V to 110V/120V UK
Support max up to 200W output power. Output Power: 200W. Output Power 200W. Ideal for fax machine, fan, air machine, com

£12.59
Yinleader

New
Yinleader 500W Voltage Transformer, 220/240 Volts to 110/120V Step Up Step Down Voltage 500VA
We provide you a safe, dependable, stable, cost-effective & easy solution to converting voltages from 240 volts down to

£41.99
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Used
Diamond Series DSR-1750 Step Up and Down Voltage Converter/Transformer
This leaves enough room for surges in power that your devices may utilize. Plug adaptors can easily be used to plug it i

£31.88
Lighting EVER

New
Lepro 12V 2A Power Supply for LED Strip Lights, 100-240V AC to DC 12V Converter Adapter Driver Transformer, 24W UK Plug
High Quality AC/DC Power Adapter - Input: AC100-240V, 50/60Hz; Output: DC12V 2A; UK Plug, Non-waterproof, 1.5M power cor

£8.99
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Best Value
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

£9.99 £13.99
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New
Multicomp MCTA050/15 50Va Toroidal Transformer 2x15V TI-69083-ME - New
They feature dual primary and dual secondary windings. New and unused. As shown in the photos. 12 month limited warranty

£24.99
Cantonape

New
Cantonape 500W Voltage Transformer, 220/240 Volts to 110/120V Step Up Step Down Voltage Converter, UK to US & US to UK
HIGH VOLTAGE TRANSFORMER- This power transformer can be used in 110 Volt countries and 220 Volt countries. It will conve

£39.99
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New
625VA Toroidal mains transformer 240V to240V(centre tapped)

£88.00
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

£18.80
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AmzFwing

New
24V 1A Power Supply Adapter AC 100V-240V to DC 24Vdc 24W Transformer, fit for 24 Volt 1.0A 1000mA 0.5A 500mA 0.1~1A Led
[DC 24V Power Adapter Product Specification:] Global Input Voltage: AC 100 - 240Vac 50/60Hz, Output Voltage: DC 24V, Max

£12.25 £12.89
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10% Off

New
15VA to 300VA Toroidal Transformer 6V 9V 12V 15V 18V 24V Dual Primary 230V
300VA 60°C 6% 125mm 54mm 2780g. 15VA 26°C 16% 65mm 36mm 330g. Dual secondary winding: 2 x 0-6V, 0-9V, 0-12V, 0-15V, 0-18

£46.79 £51.99
15% Off
XUZIE

New
RuverLand 200W Voltage Converter Step Down Power Transformer, 220v/240v to 110v/120v UK Plug, Intelligent Adapter Travel

£17.31 £20.49
New
Waterproof LED Driver Power Supply Transformer DC12V/24V IP67 for LED Strip 240V
We will get back to you within 24 hours.

£83.49
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

£10.90
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Used
110v Transformer
The 110v Transformer is a standalone power transformer designed for converting AC to AC power with a minimum operating f

£73.48
New
Isolation transformer Power Supply,625VA,Made in UK
UK mains plug with lead and dual UK switched mains sockets.

£137.00
New
3.0KVA PORTABLE TRANSFORMER
Built with tough, durable GRP casing to make it suitable for heavy-duty site use. • Rubber cable with 13A 240V plug. • T

£62.98
New
AC240V to DC5/12/24 IP20 LED Driver Switch Power supply Lighting Transformer PSU
DC5V IP20 Driver Length Width Height Weight. DC5V 10W IP20 Driver 70mm 40mm 30mm 100g. DC5V 20W IP20 Driver 85mm 58mm 34

£91.24
New
AC 230V To DC 5V/12V/24V 10W-1000W AC/DC Power Supply Adapter Transformer Driver
※Out put: DC 12V ;DC 24V,DC 5V ;. 5V 2A 10W 70 39 31. ※GND: DC power output "-". ※V: DC power output "+". ※100% full loa

£51.99
New
200W Power Voltage Converter Transformer Step-Down 220V/240V to 110V/120V UK
The maximum power used by the appliance is 200W. Do not use it with high powered appliances such as hair dryers, electri

£11.59
New
12V DC Transformer LED Driver AC 240V Waterproof Power Supply 10W-250W IP67
Waterproof: IP67. Waterproof: IP67 Can be used in shallow water. Output: 12V/ 24V DC. Universal AC input/Full range Cool

£50.89
New
500W 800W 1500W 3000W Voltage Transformer Converter 110V ⇋ 230V Step Up&Down RV
Suitable for Water dispenser, rice cooker, fan fax machine, air machine, computer. It features a heavy-duty cord with 1

£39.99
New
SCL Control Circuit Panel Transformer In 0-230-400-415-440V AC Out 0-12-24VAC
Heating & Ventilation. Cable & Accessories. Fire & Security. Need help?. Multi tap secondary 0 - 12 - 24V AC (12 - 0 - 1

£35.49

25 Power Transformers deals are available from: Amazon, eBay stores, starting from £8.99.
The biggest discount we found is 28% on EFISH International Power Adapters Multifunctional Portable Power Transformers (Included USB),AC Supply Adapter 100-240V to DC 3V/4.5V/5V/6V/7.5V/9V/12V-MAX 2A (2000mA)+8 Different Plugs at Amazon.
The lowest price we found is £8.99 while the highest is £137.00.
Prices for the best Power Transformers deals average at £41.96.
Last updated on October 4, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Power Transformers.