How big is it?
Drawn to scale next to Benny, who is 5 ft 9 in (1.75 m). Changes with the size you pick.
What you get
4 sizes, 3 boards, one message: the Danger 400 Volts Sign flags the voltage behind the door and the shock risk that comes with it. Go up to A1 (594 × 841 mm) if people read it from as far as 24 m. Every danger 400 volts sign printing job is made to order.
- Printed in full colour and made to order in the UK
- A person checks uploaded files for size, bleed and resolution
- Upload your own PDF, or ask us to set it up
- Free UK delivery over £49.99 this week, otherwise £7.95
Danger 400 Volts Sign Printing
Danger 400 volts sign printing, made to order: a danger sign that flags the voltage behind the door and the shock risk that comes with it. Sizes run from A4 (210 × 297 mm) up to A1 (594 × 841 mm), on 3mm Foamex, 3mm Dibond or self-adhesive vinyl.
Charity, school, club or place of worship? up to 10% off every orderBusiness? up to 5% off your first order
- Free UK delivery over £49.99 this week
- Dispatch from 2 working days
- Printed in the UK
Overview
If "Danger 400 Volts" needs saying clearly, this is the sign, and danger 400 volts sign printing is what we do. It flags the voltage behind the door and the shock risk that comes with it, and you will find it in plant rooms, distribution boards, switch rooms and substations.
Where to fix it
On the door or cover of the electrical kit. Fix it at eye level on the enclosure, so it is seen before the door or cover is opened.
The right size for danger 400 volts sign printing depends on the reading distance. Reading distance is worked out from the sign’s short side: about a metre for every 25 mm, the distance factor from ISO 3864-1. That makes A4 to about 8 m, A3 to about 12 m, A2 to about 17 m and A1 to about 24 m. Anything read from a distance or a moving vehicle wants the larger sizes.
The message
It reads "Danger 400 Volts". The DANGER header is saved for hazards that can kill or badly injure, which is why it gets noticed over the everyday caution signs. The layout is a yellow triangle with a heavy DANGER heading, plus the ISO 7010 W012 symbol (electricity).
Boards for danger 400 volts sign printing
There is a board for each kind of spot in our danger 400 volts sign printing range:
- 3mm Foamex, a rigid PVC foam board that screws or sticks up easily and is happiest indoors or out for a season
- 3mm Dibond, aluminium skins on a solid core, the one to pick for a sign that stays outside for years
- self-adhesive vinyl, which sticks flat to smooth walls, doors, glass and machine guards
Indoors, Foamex or vinyl is plenty; for years outdoors, Dibond is the one.
Anyone working on the equipment should see the warning before they see the kit.
Under the Health and Safety (Safety Signs and Signals) Regulations 1996, employers put up a safety sign wherever a risk is still there after other controls. Warning signs take the yellow triangle with a black edge.
Upload your own file, lay it out in the online designer, or hand it to our paid artwork service, which includes 1 design and 2 rounds of changes. A person gives every file a free check first. Every danger 400 volts sign printing order is made to order and dispatched from the UK. Postage is £7.95 to the UK mainland and free over £100, worked out after discounts and not counting artwork fees. The Highlands add £10, and addresses in Northern Ireland, the Scottish islands, the Isle of Man, the Channel Islands, Scilly or the Isle of Wight get a quote. Full details are on the delivery page.
Also worth a look: electrical safety signs and everything in safety signs. Stuck on the choice? Our guide to safety sign colours helps.
Sizes and prices
Smallest first. Tap a price to load that size into the buy box.
| Size | 3mm Foamex | 3mm Dibond aluminium composite | self-adhesive vinyl |
|---|---|---|---|
| A4 · 210 × 297 mm | |||
| A3 · 297 × 420 mm | |||
| A2 · 420 × 594 mm | |||
| A1 · 594 × 841 mm |
Final prices per item with the lowest-priced options. UK delivery £7.95, free over £49.99 this week. Choose a price to load it into the price calculator.
Specs
Materials, sizes and finishing.
| ISO 7010 reference | W012 (Electricity) |
|---|---|
| Message | Danger 400 Volts |
| Sign type | Danger |
| Materials | 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl |
| Sizes | A4 (210 × 297 mm), A3 (297 × 420 mm), A2 (420 × 594 mm), A1 (594 × 841 mm) |
| Viewing distance | A4: 8 m, A3: 12 m, A2: 17 m, A1: 24 m |
| Full colour, single sided | |
| Made by | Made to order and dispatched from the UK |
| SKU | FP-SAF-106 |
| Price | Final price shown in the configurator. No surprises at checkout. |
| Delivery | UK mainland £7.95 per order, free over £49.99 this week. Scottish Highlands +£10; islands and NI quoted. |
| Artwork check | Free file check on uploaded artwork (resolution, size and bleed). |
Which size do I need?
A safety sign must be large enough to read from where people will see it. Our conservative guide, based on the distance-factor method in ISO 3864-1, is about 1 metre of viewing distance for every 25 mm of sign height (the shorter side). Use it with your own risk assessment.
| Size | Readable from up to about |
|---|---|
| A4 (210 × 297 mm) | 8 m |
| A3 (297 × 420 mm) | 12 m |
| A2 (420 × 594 mm) | 17 m |
| A1 (594 × 841 mm) | 24 m |
Well lit or internally lit signs can be read from further away; dim areas need larger signs.
Questions
Quick answers about danger 400 volts sign printing.
What size do I need so people can read "Danger 400 Volts"?
Go by reading distance rather than wall space. In normal light, A4 (210 × 297 mm) covers 8 m, A3 (297 × 420 mm) covers 12 m, A2 (420 × 594 mm) covers 17 m and A1 (594 × 841 mm) covers 24 m. Choose one size up if people pass quickly or the area is poorly lit.
Which ISO 7010 symbol is on the Danger 400 Volts sign?
It carries W012 (Electricity) from ISO 7010, printed with the words "Danger 400 Volts". The symbol artwork itself is public domain.
Where do I fix the Danger 400 Volts sign?
For "Danger 400 Volts", the usual spot is on the door or enclosure of the electrical equipment. Check nothing will stand in front of it, like open doors, stacked stock or parked vans.
Am I legally required to display "Danger 400 Volts"?
The Health and Safety (Safety Signs and Signals) Regulations 1996 call for a safety sign wherever a significant risk is left after other controls. Live electrical equipment is a common case. How many you need and where comes down to your own risk assessment.
Why is the Danger 400 Volts sign in these colours?
The yellow triangle flags a hazard, and the word DANGER marks it as a serious one. The "Danger 400 Volts" sign uses that standard layout, so people read its meaning before the words.
Will the Danger 400 Volts sign survive outdoors?
Yes, if you order it in Dibond, which cope with rain. Foamex is better kept indoors or somewhere sheltered. Pick the material in the options before you order.
Can I buy more than one Danger 400 Volts sign?
Yes, change the quantity before you check out; every sign is made to order. Need a big mix of different signs for a school, club or site? Use the Get a quote page. Spend £100 on goods (design fees are not counted) and UK mainland delivery is free; otherwise it is £7.95 once.
Is anything added to the price of the "Danger 400 Volts" sign at checkout?
Only delivery, where it applies. What the page shows is what you pay for the goods at checkout. The £26.33 starting price for the "Danger 400 Volts" sign is the full price of the goods. Spend £100 on goods (design fees are not counted) and UK mainland delivery is free; otherwise it is £7.95 once.
Asked by buyers
How much will the Danger 400 Volts Sign set me back?
£26.33 is where the Danger 400 Volts Sign starts, set up as A4 (210 × 297 mm) and 3mm Foamex on the Saver speed. Change the size, material, extras, quantity or speed and the total on the page moves straight away. The price you see is the price you pay at checkout, with delivery the only thing that can be added. Delivery anywhere on the UK mainland is £7.95 an order, and it costs nothing once the goods come to £100 or more after any discount code (design and artwork fees are not counted).
Is delivery ever free?
It is £7.95 for the whole order, not per item, and free once the goods reach £100 after any discount code; design or artwork charges are left out of that £100. On its own the opening price of £26.33 would add £7.95 for mainland delivery; reach £100 of goods and that goes to zero. A mainland Highlands postcode puts a single £10 on the order. Northern Ireland has its delivery priced before you pay, and so do the Channel Islands, the Scottish islands, Scilly, the Isle of Wight and the Isle of Man. Before delivery, this sign costs from £26.33. On its opening option, Danger 400 Volts Sign leaves us after 5 working days on Saver.
If I buy the Danger 400 Volts Sign today, when will it leave you?
As the page first opens, the speeds for the Danger 400 Volts Sign are Express 2 working days, Standard 4 and Saver 6, counting Monday to Friday and skipping bank holidays. The count begins once we have your order and a file ready to print. A bigger size or a different material can move it by a day either way; each speed shows its own days as you choose. Tracking arrives by email on the day it ships, and the courier usually takes one to three working days from there.
Vinyl, Dibond or Foamex: which should we pick for a Danger 400 Volts Sign?
"Danger 400 Volts" might go up at a plant room, a meter cupboard or the stage area of a community theatre, so the choice comes down to the surface and the weather. Vinyl is a sticker version for glass, doors and smooth paint. Foamex is a light plastic board, best kept indoors or somewhere sheltered. Dibond, an aluminium composite, is the long-life choice for outdoors and hard-wearing spots. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex.
How big does our Danger 400 Volts Sign have to be to read across a room or yard?
Stand where someone first needs to read "Danger 400 Volts" and pace out the gap to where it will hang. Then match that number: up to 8 m for A4, 12 m for A3, 17 m for A2 or 24 m for A1. Dim corners or people on the move call for one size bigger. Those distances follow the ISO 3864-1 distance-factor method (25 mm of height per metre) and sit alongside your risk assessment, not in place of it. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all.
Which sizes can the Danger 400 Volts Sign be printed in?
Smallest: A4 (210 × 297 mm), from £26.33. Biggest: A1 (594 × 841 mm), from £70.72. 2 more are listed in between, each priced on the cheapest options. Not sure which? Mark the space out with tape or string first and stand back to look. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. Material choices for Danger 400 Volts Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.
What will people understand when they see a Danger 400 Volts Sign?
Its job is to mark out a serious hazard: "Danger 400 Volts" is laid out as a danger sign. The picture is W012 from ISO 7010 (electricity), which gets the point across to visitors who read little or no English. Those colours and shapes come from the 1996 Safety Signs and Signals Regulations, which is why they look familiar.
We are kitting out a hall with several different signs. Can they all go in one order?
Yes. Put each sign in the basket with whichever size and board suits its spot, then pay once at checkout. One delivery charge covers the whole order, and it drops to nothing when the goods reach £100 after any discount code. Picking the same board for every sign gives the set a matching look; "Danger 400 Volts" comes in A4, A3, A2 and A1. Nothing is printed ahead of time: each sign is made to order for you.
How much does an A2 (420 × 594 mm) sign cost?
Material by material, it is 3mm Foamex at £40.65, 3mm Dibond aluminium composite at £57.95 and self-adhesive vinyl at £70.72. Add £7.95 for UK mainland delivery, or nothing at all once the goods reach £100. Select it on the page and swap materials, finishes and speed to watch how the figure moves. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. Material choices for Danger 400 Volts Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl. The live price for the options you choose shows on this page before you add to basket.
Can a private person buy a single sign?
Yes. One is enough, and you do not need a business name or an account to check out. The opening price is £26.33, and any bank card will do. On its own the opening price of £26.33 would add £7.95 for mainland delivery; reach £100 of goods and that goes to zero. A person still checks your file before it is printed, just as for a big order. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On its opening option, Danger 400 Volts Sign leaves us after 5 working days on Saver.
How much for the biggest size, A1 (594 × 841 mm)?
From £70.72, with the cheapest settings and the Saver service. Material by material, it is 3mm Foamex at £71.71, 3mm Dibond aluminium composite at £83.74 and self-adhesive vinyl at £70.72. Add £7.95 for UK mainland delivery, or nothing at all once the goods reach £100. Select it on the page and swap materials, finishes and speed to watch how the figure moves. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. For reference, Danger 400 Volts Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).
Is there a quicker turnaround for this sign?
Work back from the day you need it. Express takes 2 working days to get the Danger 400 Volts Sign out, against 5 on Saver, and costs £35.08 on the opening option rather than £26.33. Add up to three working days for the courier, plus any time you need to finish the file. Cutting it fine? Put your date in the question box before you order.
I live in the Scottish Highlands. Will the Danger 400 Volts Sign cost more to send?
The whole UK is covered. Outside it, sadly, we cannot deliver. Mainland addresses in the Highlands pay one extra £10 on the order, even when delivery would otherwise be free. For Northern Ireland, and for the Channel Islands, the Scottish islands, Scilly, the Isle of Wight and the Isle of Man, we tell you the delivery cost before you pay, so message us your postcode on the Contact page or our Get a quote page. Choose Saver and this sign leaves us after 5 working days; Express brings that down to 2. Before delivery, this sign costs from £26.33. On its opening option, Danger 400 Volts Sign leaves us after 5 working days on Saver.
How many pixels does a photo need to print well on this sign?
Roughly 7,016 pixels across and 9,933 down for an A1 (594 × 841 mm) design, which is 300 dpi. Things read at arm's length need that 300 dpi at full size to stay crisp. Text and logos are safest as vector art, which never goes fuzzy. Pictures saved from a website or social media are nearly always too small, and our file check will point out any that could print blurred. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. For reference, Danger 400 Volts Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).
Will anyone look at my file before it is printed?
Every file gets a human check for size, bleed and resolution, and we contact you about any problem before printing. Nobody can know your details better than you, so double-check names, numbers and dates: we print what is supplied, and work begins once the order and file are confirmed. Make the artwork for this sign the same size as the one you order, such as A4 (210 × 297 mm). Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On this page, Danger 400 Volts Sign starts from £26.33.
Can the wording on a Danger 400 Volts Sign be changed, or our logo added?
A school can add its crest to "Danger 400 Volts", a club its badge, a shop its name. Choose typesetting (£15) if you know the words, or design from your brief (£35) if you would like us to lay it out; each comes with one first draft and two rounds of changes. Have your own finished file? Upload it free and one of our team will look it over. Keep the symbol and safety colours unchanged so the sign still reads the right way. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all.
I am not a designer. What if the file I send turns out to be unusable?
You will not be left guessing. Each uploaded file is opened and looked over by a member of the team, and problems such as low-resolution pictures, no bleed or the wrong page size are sent back to you to fix before printing. If fixing it sounds like a chore, choose typesetting for £15: we lay out your text and logo, show you a first draft, then make up to two rounds of changes. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. On this page, Danger 400 Volts Sign starts from £26.33.
Does the Danger 400 Volts Sign come in a peel-and-stick version?
Yes: self-adhesive vinyl is one of the material choices, and that version is simply a sticker with a backing to peel off. Use it on smooth things like glass, doors, cupboards, machines or painted plaster. Clean and dry the surface first, then smooth it on working out from the middle. If the wall is rough or dusty the sticker will not grip well, so go for one of the boards. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. On its opening option, Danger 400 Volts Sign leaves us after 5 working days on Saver.
What thickness is the Danger 400 Volts Sign, and does it feel sturdy?
The sticker version, in self-adhesive vinyl, is only a film, so it sits flush on a door or wall. Every rigid option measures 3 mm. Foamex is a lightweight PVC foam board. Dibond has aluminium on both faces around a plastic middle, so it stays flat and firm but is easy to fix. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. On this page, Danger 400 Volts Sign starts from £26.33.
Would the Danger 400 Volts Sign be useful for electricians?
For rewires, testing and inspections, look under Electricians in the shop: the Danger 400 Volts Sign is listed there. Prices begin at £26.33; 4 sizes are listed, starting at A4 (210 × 297 mm); the material choices are self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. People buying for that kind of work often add Danger Buried Cables Sign or Danger Electric Shock Risk Sign. Put everything in one order and delivery is free at £100 or more.
We are putting up a full set of signs at our premises. Which ones sit well next to this one?
Two good companions for it are Danger 415 Volts Sign and Danger 440 Volts Sign. Each has a page of its own with every size, material and a live price, and picking one material for all of them makes the wall look like a matching set. Put the lot in a single basket and you pay one delivery charge, which drops to nothing when the goods reach £100. You will also find this sign in our Electricians section.
Will a Danger 400 Volts Sign cope with rain and wind outdoors?
"Danger 400 Volts" can go outside as long as you match the material to the job. For a sign that stays out for years, Dibond is the one to choose. Foamex will manage a sheltered spot, such as a porch or under a canopy, but it is really an indoor board. Strong sun slowly fades any print, so glance at outdoor signs every so often and swap any that have become hard to read. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex.
It gets dark early in winter. Can people still read the Danger 400 Volts Sign in the evening?
Only if a light falls on it. The Foamex, Dibond and vinyl sticker versions are printed without any reflective or glow-in-the-dark layer. So for a church car park, a school path or a yard used on winter evenings, put it beneath a lamp that is already there, or add a light. If your risk assessment says a sign has to reflect or glow, buy that one from a firm that makes them. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Before delivery, this sign costs from £26.33. For reference, Danger 400 Volts Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).
What is the easiest way to put up a Danger 400 Volts Sign?
It depends what "Danger 400 Volts" is going on. Brick or plaster: screws through holes near the corners, washers under the heads, and a light hand (Foamex especially). Painted doors and smooth walls inside: foam tape or sticky pads, no drilling needed. Fences and railings: two or four holes, then cable ties. Glass and glossy panels: the vinyl version, pressed on after a wipe and a dry. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex.
Which material is cheapest for the Danger 400 Volts Sign?
Taking the smallest size, A4 (210 × 297 mm), as the example: self-adhesive vinyl at £50.78, 3mm Dibond aluminium composite at £47.35 and 3mm Foamex at £26.33. Larger sizes follow a similar pattern, and the full grid sits in the size table further up the page. Think about where it is going first: a cheap material in the wrong spot can end up costing more. Before delivery, this sign costs from £26.33. For reference, Danger 400 Volts Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).
Do we legally have to display a Danger 400 Volts Sign?
Not in every case. The Health and Safety (Safety Signs and Signals) Regulations 1996 require employers to put up safety signs where a risk is left over once other controls are in place. So whether you need "Danger 400 Volts" on display, and where it goes, comes out of your own risk assessment. A sign adds to other safety measures and never takes their place. The symbol on this sign follows ISO 7010, reference W012.
Next year we will want the same sign again. Is reordering easy?
Yes. Treat it as a fresh order of the same item with the same settings, and attach the file you used last time. Keep a copy of the print file in a shared folder so whoever orders next year can find it. Change any details that have moved on, such as a new email address or this year's date, before uploading. Before delivery, this sign costs from £26.33. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On its opening option, Danger 400 Volts Sign leaves us after 5 working days on Saver.
Which cards do you take, and is paying online safe?
You pay by debit or credit card when you check out, and you can do it as a guest without making an account. Card details are handled by Stripe, a specialist payment company, so the full card number never reaches us or sits on our system. Printing starts after payment goes through and your file has been checked. If your group needs a price agreed before anyone pays, ask for a quote instead. Before delivery, this sign costs from £26.33. Nothing is printed ahead of time: each sign is made to order for you. For reference, Danger 400 Volts Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).
Can a volunteer order without setting up an account?
Yes. There is a guest checkout, so a one-off order does not need a login. Payment is by debit or credit card, processed by Stripe. The confirmation email that follows lists everything bought and what was paid, which helps when you claim the money back from the group. What the page shows is what the group pays, plus any delivery. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. Nothing is printed ahead of time: each sign is made to order for you. On this page, Danger 400 Volts Sign starts from £26.33.
Our club needs a big batch of signs, or an odd size. Can you price it?
Our Get a quote page is the place, and it also handles delivery to Northern Ireland and the islands. For anything the page cannot do, tell us the size, number, material, date and postcode on Get a quote, add a file if you have one, and we email a price back. Before delivery, this sign costs from £26.33. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On this page, Danger 400 Volts Sign starts from £26.33.
We need a few different designs. Do they each need their own order?
One checkout covers the lot. Add a basket line for every design, attach the right file to each, then pay once. You pay a single delivery charge of £7.95 for the whole order, or nothing if the goods add up to £100 or more. Repeating one design on another line? Choose the artwork choice that points to a file already in the basket, and no second design fee is charged. Before delivery, this sign costs from £26.33. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On this page, Danger 400 Volts Sign starts from £26.33.
Our treasurer needs a receipt for the accounts. What do we get?
Every order gets a confirmation email listing what was bought, the options chosen and the amount paid, and a club, school or small firm can file that as its record of payment. What you pay for this sign is the price shown on the page plus any delivery charge, nothing more. If your accounts need a particular kind of invoice, ask through the Contact page before you order and we will tell you what we can provide. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. Before delivery, this sign costs from £26.33. Material choices for Danger 400 Volts Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.
Can I swap my file once I have paid?
It depends on timing. Until production begins, a new file can replace the old one, or the order can be cancelled with a full refund; once it has begun, nothing can be changed. Message us straight away on the Contact page with your order number. Items printed exactly as supplied or designed do not count as faulty, so check names, numbers and dates first. Nothing is printed ahead of time: each sign is made to order for you. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On its opening option, Danger 400 Volts Sign leaves us after 5 working days on Saver.
The parcel turned up damaged. How do I sort it out?
Look everything over when it arrives. If something is damaged or missing, contact us within 48 hours through the contact form, with your order number and photos of both the item and the packaging. Please keep hold of it until we reply; we then sort out a reprint or a refund. Your legal rights stay the same, as the returns page sets out. Before delivery, this sign costs from £26.33. Choose Saver and this sign leaves us after 5 working days; Express brings that down to 2. Material choices for Danger 400 Volts Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.
I have never ordered printing before. Do I need to know the technical words?
No. A person on our team checks every file for size, bleed and resolution and tells you in plain words if anything needs changing. Or pick typesetting for £15 and we lay out your words and logo for you, with a first draft and two rounds of changes. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Make the artwork for this sign the same size as the one you order, such as A4 (210 × 297 mm). For reference, Danger 400 Volts Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).
Will my logo colours come out the same as on screen?
Very close, but not always identical. A screen glows, print reflects light, so a small difference is normal. Sending CMYK artwork keeps it nearest; RGB is changed to CMYK before printing and the brightest greens, blues and oranges can look a touch flatter. For an exact brand colour, give us the Pantone reference and we get as close as the material allows. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On this page, Danger 400 Volts Sign starts from £26.33.
Can the Danger 400 Volts Sign carry wording in two languages, for example English and Welsh?
A community centre or a surgery often wants every visitor to understand a notice, and this sign can do that. Tick typesetting for £15, then give us your wording in each language, already translated, since translation is not something we do. You get one first draft and two rounds of changes. Keep the same symbol and sign colours so nobody misreads it. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. On this page, Danger 400 Volts Sign starts from £26.33.
Does a Danger 400 Volts Sign come upright or wide?
Portrait. "Danger 400 Volts" is offered in A4, A3, A2 and A1. That shape is made for doors, posts and slim wall spaces. If your spot needs the opposite, pick one of the paid design options and we re-lay it to suit. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all.
The spot gets full sun all afternoon. Could this sign warp in the heat?
It depends on the board. Foamex is foamed plastic, and a large, thin sheet in strong sun can curve, most of all when it is held only at the corners. Dibond sandwiches a core between aluminium skins and stays flat, which is why people choose it for signs that live outdoors for years. If you go with Foamex, fix it flat to a wall along its length or pick a thicker option. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Nothing is printed ahead of time: each sign is made to order for you. For reference, Danger 400 Volts Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).
Could the Danger 400 Volts Sign go on a door, say an office or classroom door?
It can, and the vinyl sticker version is the tidiest way to do it on a door or a glass panel. On a flat door, the 3mm Foamex board with foam tape on the back is a good alternative. Aim for eye height, either beside the door or on the side people push, so an open door does not hide it. Fire doors are different: ask the person responsible for the building before you drill into one. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. For reference, Danger 400 Volts Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).
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How we handle reviews
Only people who bought the product can review it. Each review is checked against a real order and marked "Verified owner".
We publish every genuine review, good or bad, exactly as it was written. We never edit reviews or choose which ones to show. The only reviews we hold back are spam, abuse, or ones that include personal details like a phone number or email address.
The star rating is the average of every published review. We never pay for reviews or give discounts or gifts in return for them.
Reviews show the reviewer's first name and initial. To have your own review taken down, contact us.





