Power saver plugs for UK homes

What to look for in a power saver

• UK 3-pin plug and safety-focused build
• Covers a whole circuit, not one appliance
• No app or subscription
• Money-back guarantee so you can test it

WattLock Energy Saver

From £39 · Free UK delivery · 30-day money back

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WattLock power saver bundles

• 1 for £39
• 2 for £59
• 3 for £78
• 4 for £117

Power saver plugs explained

A power saver plug is a small device that plugs into a wall socket and is designed to help appliances on that circuit use electricity more efficiently. You'll also see them called energy savers, electricity saving boxes or power factor savers. WattLock is the UK-designed version, with a British 3-pin plug and a fire-resistant casing.

Power saver plugs don't replace good habits or efficient appliances, but they're a quick, low-effort addition for households looking for simple ways to keep an eye on energy use.

Who chooses a power saver plug?

• Homeowners and renters who can't make big changes to their home
• Older households wanting something simple with no app
• Families with lots of appliances running daily
• Anyone who wants to try a device with a no-quibble refund

How to buy the right number

Count the socket circuits on your consumer unit and buy one WattLock for each. A flat is typically one, a 2–3 bed house two, and a house with a separate kitchen circuit three.