WattLock guides & help centre
Updated October 2026 · WattLock UK team
Free, plain-English guides to saving electricity in UK homes – plus everything you need to know about WattLock.
Quick answer
New here? Read three guides: count your socket circuits, see how to fit WattLock, then pick a bundle. Below you'll find 26 guides on energy saving, safety, delivery and comparisons.
Start here
Most visitors want to know three things: how many units their home needs, how to fit them and what it costs. These three guides answer all of that in a few minutes.
- How many do I need?Count your socket circuits in two minutes and pick the right bundle.Read guide
- How to use WattLockFour simple steps – plug in, check the green light, done.Read guide
- Price and bundlesEvery bundle price, per-unit cost and which suits your home.Read guide
Energy saving guides
Practical, free guides for UK households. Learn how your home's circuits are laid out, what standby (phantom) power is, and everyday habits that help lower your electricity bill – whether or not you buy a WattLock.
- How many circuits are in my house?How to count the socket circuits in a UK home using your fuse box, and what it means for how many WattLock…Read guide
- Phantom power: what standby electricity costs UK homesWhat is phantom (vampire) power, which appliances use it in UK homes, and simple ways to cut standby…Read guide
- How to reduce your electricity bill in the UKPractical ways to reduce your electricity bill in the UK: tariffs, heating, appliances, standby power and…Read guide
About WattLock
Everything about the device itself: how it works, where to plug it in, how safe it is and how to make sure you're buying the genuine WattLock from the official UK website.
- WattLock official websiteThe official WattLock website. Buy the genuine WattLock Energy Saver direct from wattlock.co.uk – free UK…Read guide
- Is WattLock legit or a scam?Is WattLock a scam? See how to buy the genuine WattLock Energy Saver safely, how payments are protected and…Read guide
- WattLock discount code & dealsLooking for a WattLock discount code? The best WattLock deals are the official bundles: 2 for £59, 3 for…Read guide
- Is WattLock on Amazon or eBay?Is WattLock sold on Amazon, eBay or Temu? Genuine WattLock Energy Savers are only sold on the official…Read guide
- WattLock UK deliveryWattLock delivers free to every UK address. Orders are usually dispatched within 1–2 working days with…Read guide
- How does WattLock work?How does the WattLock Energy Saver work? A plain-English explanation of the TrueWatt circuit, what one unit…Read guide
- Is WattLock safe?Is the WattLock Energy Saver safe to leave plugged in? Built to the UK plug standard with an approved…Read guide
- Where to plug in WattLockWhere should you plug in the WattLock Energy Saver? Which socket to use, how many you need and why one unit…Read guide
Order WattLock
Up to 62% off- 1Enter delivery address
- 2Pay securely
- 3Dispatched with tracking
Free UK delivery
30-day money-back guarantee. Not happy? Send it back for a full refund. Read the terms. Secure Shopify checkout, prices include VAT.
Buying, delivery and returns
Ready to order or want to check the details first? These pages cover prices, honest reviews, delivery and our 30-day money-back guarantee.
- Buy WattLock Energy SaverOrder the genuine device with secure checkout.Read guide
- WattLock reviewsHonest buyer guide with pros, cons and how to test it yourself.Read guide
- Does WattLock work?What to expect and how to judge results with your meter.Read guide
- WattLock FAQ38 answers on fitting, safety, delivery, payment and returns.Read guide
- ShippingFree tracked UK delivery details.Read guide
- Returns and refundsHow our 30-day money-back guarantee works.Read guide
Energy saving plugs and devices
Plug-in energy savers go by many names – energy saving plugs, power saver plugs, electricity saving boxes. These guides explain what they are and what to look for when choosing one in the UK.
- Energy saving plugs in the UKLooking for an energy saving plug in the UK? Meet WattLock: a plug-in energy saver for UK sockets. Fits in…Read guide
- Electricity saving box: what it is and does it work?What is an electricity saving box and do they work? An honest UK guide to plug-in power saving boxes,…Read guide
- Power saver plugs for UK homesShopping for a power saver plug in the UK? WattLock is a plug-in power saving device for UK homes. From…Read guide
- Energy saving devices for UK homesA practical guide to energy saving devices for UK homes: smart plugs, thermostats, LED bulbs, standby…Read guide
Comparisons
How WattLock compares with other plug-in energy savers and with smart plugs, so you can choose what suits your home.
- WattLock vs OptiwattComparing WattLock and Optiwatt? A fair side-by-side on price, UK delivery, guarantee and how to choose the…Read guide
- WattLock vs StopWattWattLock or StopWatt? Compare price, UK availability, guarantee and safety details to choose the right…Read guide
- WattLock vs smart plugsWattLock vs smart plugs: how they differ, cost, fitting and what each is best for – and why many UK homes…Read guide
Help centre questions
Free UK delivery · 30-day money-back guarantee