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

Last Updated - 14/12/2025 Sort By:

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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

£12.90
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SoulBay

New
SoulBay 12W Universal 3V 4.5V 5V 6V 7.5V 9V 12V AC DC Adapter Switching Power Supply with 8 Selectable Adapter Plugs for
12V Power Supply - This AC/DC adapter can apply to most appliances, which the efficient voltage is from 3V to 12V. (NOT

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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
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
500W 800W 3000W 5000W Voltage Converter Transformer Step Up/Down 240V to 110V
The included detachable power cord makes it easy to adapt for use in any country. Features two independent output socket

£44.99
Best Value
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 £26.99
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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
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New
LVYUAN 1500VA 220V - 110V Step Up & Step Down Voltage Transformer Converter UK A
The LVYUAN 1500VA 220V - 110V Step Up & Step Down Voltage Transformer Converter is a versatile power transformer designe

£42.00
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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New
625VA Toroidal mains transformer 240V to240V(centre tapped)

£88.00
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
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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

£10.99
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New
Voltage Converter Transformer 220V/240V To 110V/120V Step Down Power
Do not use it with high powered appliances such as hair dryers, electric iron etc. - The maximum power used by the appli

£10.88
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
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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

£10.87
XZGm

New
Safety Isolating Transformer, 240V to 24V, 450mA, 10.8VA, for twig lights,Christmas lights Power Adapter
SPECIFICATIONS: Input 240V/50Hz, Output 24V/450mA, Power rating 10.8VA, designed for twig lights and Christmas light app

£14.99 £15.99
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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

£21.77 £24.19
New
8-Modes Power Supply Adapter Transformer 31 V 3.6W For Christmas LED Fairy Light
31V 6W, Power Up To 800LEDs. NO Fairy Lights NOR Lead Cable Included. 1x LED Light driver. UK Three Pin Type G. Works wi

£6.45
New
Isolation transformer Power Supply,625VA,Made in UK
UK mains plug with lead and dual UK switched mains sockets.

£139.00
New
DC12V/24V LED Driver Waterproof IP67 240V Power Supply Transformer for LED Strip
DC24V IP67 Drivers. DC24V 10W IP67 Driver 117mm 96mm 29mm 20mm 150g. DC 24V24W IP67 Driver 200mm 187mm 30mm 20mm 150g. D

£51.79
New
31V 6W Power Supply Adapter Transformer For Christmas LED Fairy Light IP44 Plugs
31V 6W, Power Up To 800LEDs. NO Fairy Lights NOR Lead Cable Included. 1x LED Light driver. UK Three Pin Type G. Works wi

£6.45
New
31V 6W Power Supply Adapter Transformer For Christmas LED Fairy Light IP44 Plug
31V 6W, Power Up To 800LEDs. NO Fairy Lights NOR Lead Cable Included. 1x LED Light driver. UK Three Pin Type G. Works wi

£6.58
New
1W to 100W Power Transformer 220V TO 6V/9V/12V/15V/18V/24V Output AC Single/Dual
Rated Power: 1W 2W 3W 5W 8W 10W 12W 15W 20W 25W 30W 50W 60W 80W 100W. Dual Output, 15V-0-15V ,Power 15W ,it is ablout 0.

£36.72
New
CHINT NDK Control Circuit Panel Transformer 230-415V Output 12,24,48,110,230Volt
Heating & Ventilation. Fire & Security. Need help?. NDK-250: 130 x 120 x 150mm. With over 25 years’ experience working w

£35.37
New
Step Up Step Down Voltage Transformer 220V to 110V Mutual Transformer ST-1000VA

£29.99

25 Power Transformers deals are available from: Amazon, eBay stores, starting from £6.45.
The biggest discount we found is 10%% on 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 Electronics, 2A Max. at Amazon.
The lowest price we found is £6.45 while the highest is £139.00.
Prices for the best Power Transformers deals average at £28.02.
Last updated on December 14, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Power Transformers.