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

Last Updated - 22/10/2025 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

£22.99 £26.99
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Best Value
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
The maximum power used by the appliance is 200W. Do not use it with high powered appliances such as hair dryers, electri

£13.98
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
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New
5.0 KVA Transformer – Heavy-Duty Power Supply for Industrial & Construction Use
• Power Output: 5.0 KVA. ✔️ Multiple Power Connections – Features two 16A sockets, one 32A socket, and a 13A plug for fl

£189.99
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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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

£36.79 £39.99
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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
12% Off
Zolt

New
Zolt 45W Universal Power Adapter AC DC 5V 6V 7.5V 9V 12V 13.5V 15V Power Supply Transformer Adaptor for Household Electr
Power Specification: AC Input: 100-240V 50/60Hz; DC Output: 5V 6V 7.5V 9V 12V 13.5V 15V 3A Max.; Cable Length: 4ft/1.2m;

£13.90 £15.90
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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
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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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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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
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
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New
110V Transformer 1.5kVA Step Down 240V to 110V Twin 16A Sockets, IP44, 13A Plug
IP44 plug and casing – splash and dust resistant. Supplied with 13A plug (13amp plug UK) for easy connection. Outlets: T

£62.50
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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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

£59.29
New
Isolation transformer Power Supply,625VA,Made in UK
UK mains plug with lead and dual UK switched mains sockets.

£137.00
New
Waterproof LED Driver Power Supply Transformer DC12V/24V IP67 for LED Strip 240V
We will get back to you within 24 hours.

£101.29
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

£51.49
New
Vigortronix Toroidal Transformer 300VA 0-30V VTX-146-300-230
Power 300VA. Mounting Type Toroidal.

£36.31
New
Defender Power E203010 3kVA Portable Transformer 110V 16A
Model No: E203010. Outlets - 2x 16A. Fitted with 240V 13A plug. Standard - BSEN 61558-1. Weight - 18KG. Cable - 1.8M, 1.

£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
uyoyous Step Up/Down Voltage Transformer 220V to 110V Mutual Transformer 1000W
Model: 1000W. Amperage：0.8a. Fuse protector.

£34.99
New
Dual Socket Site Transformer 3.3 kVA - Waterproof with Thermal Protection
Waterproof with Thermal Protection. Safety First: Equipped with re-settable thermal overload protection, ensuring the sa

£142.99

25 Power Transformers deals are available from: Amazon, eBay stores, starting from £8.99.
The biggest discount we found is 15% 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 £8.99 while the highest is £189.99.
Prices for the best Power Transformers deals average at £52.61.
Last updated on October 22, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Power Transformers.