New – Giant iO in Matt Black

Mathmos iO giant black lava lamp

Mathmos’ sell-out giant lava lamp iO in matt black is in stock. iO stands at 78cm (2.5ft) tall and is available at £395 including delivery. This matt black version of Mathmos’ sell-out big lava lamp looks great from any angle and can be fixed down making it perfect for all kinds of public and domestic spaces.

Buy Now

Mathmos iO Giant Black Lava Lamp - Colours

Unique Shape in 4 colour choices

Mathmos’ tall lava lamp is made of solid precision cast metal, the complex design ensures that iO is held securely together and also looks fantastic from any angle. Choose from 4 brilliant colourways including new Pink Turquoise.

See more

Giant lava lamp in black from Mathmos
2.5ft (78cm) Tall Lava Lamp

Top Quality Metalwork

iO giant lava lamp is made of aluminium from 5 precision cast mouldings. Each piece is double-checked by hand to ensure only the best quality parts are used in each product.

Mathmos giant lava lamp in black - High quality metal work

Follow us on Instagram for a Chance to Win

Limited Edition Lava Lamp Pin Badges

Mathmos limited edition lava lamp pin badges

A pair of limited edition Mathmos lava lamp pin badges of our classic Astro and Astro Baby designs. A strictly limited edition of 2000 numbered pairs of badges with their edition number embossed on the back. The enamelled metal badges are produced by the heritage British company, Fattorini, established in 1827, see below. Take advantage of the 30% Extras Discount.

£20 a pair (£14 with Discount)

Numbered exclusive collector's lava lamp pin badges from Mathmos
All badges are numbered.

Collector’s Edition

Of special interest to collectors, this edition is strictly limited to 2000 pieces. All have their number embossed on the back and are pinned to a presentation card. 

Inspired by our iconic '90s graphics - lava lamp badges to wear on coats or bags
Wear on Jackets, Coats or Bags

Iconic ’90s Graphics

Thirty years ago Mathmos had fly posters all over Britain featuring these designs of our classic 1960s lava lamps. We drew inspiration from these iconic designs for our pin badges. 

Mathmos lava lamp pin badges produced by Fattorini

Fattorini by Appointment to the Queen

The enamelled metal badges are produced by the heritage British company, Fattorini, established in 1827. Fattorini supplies The Queen of the United Kingdom with insignia, honours and awards and holds a Royal Warrant. They are craftsmen of outstanding quality producing an incredible range of iconic metal products, see below.

Fattorini create badges for Luxury car brands and the 2012 British Olympic torch
Badges for Bentley, Aston Martin, McLaren, Jaguar. The Badge for the British Olympic Torch.
Fattorini are the original designers/producers of the FA Cup
The UK Football Association Cup. The coin tossed to begin the 2019 Wimbledon Tennis Tournament.

Fattorini Artist Craftsmen

Fattorini has made an incredible range of bespoke products through their long history, see here.

Find out more

The Appearance of Colour

We are sometimes asked why the colours of lava lamps look slightly different when you turn them on at home. Also why they look different in different lighting conditions.

So we took one of our new colours blue and pink in the Astro lava lamp and photographed it in different lighting conditions. We also commissioned Antoni Malinowski who is the colour consultant for the Architectural Association in London and a fine artist to look into this for us.

Antoni malinowski donmar warehouse staircase

Antoni chose two different paints with different colours and different reflective qualities to illustrate how the same colour lava lamp can look so different in rooms painted different colours.

Mathmos Astro Lava lamp blue pink against dark blue background with lights off.

The dark cool blue reflective background multiplies the lava effect through the sharp reflection. The pink of the lava bubbles combined with the blue becomes a strong and mysterious magenta. The blue background turns the turquoise liquid into the dramatic darkness of a night sky.” A. Malinowski

Buy Astro Lava Lamp – Blue/Pink

Mathmos Astro Lava Lamp - Yellow background with lights off

The same lava lamp in front of the yellow ochre matt background creates a very different ambience. The warm yellow glow turns the lava bubbles a softer pink. The reflection on the wall is softly diffused – it gently mixes the pink reflection with the yellow shades.” A. Malinowski

Buy Astro Lava Lamp – Blue/Pink

We then photographed the same Astro in blue pink against a white wall with the lights on and with the lights off. See how different they are;

Mathmos Astro Lava lamp - Blue Pink - Light on
Mathmos Astro lava lamp blue pink - lights off

So when choosing your colour for your lava lamp think where you will put it, how you want it to appear and how you would like it to make you feel.

Buy Astro Lava Lamp – Blue/Pink

Reuse Don’t Replace

Reuse your Mathmos lava lamp don't replace it.

Recondition Your Mathmos Lamps

No need to put Mathmos lava lamps into landfill, spares are available for all our classic lava lamps still in production from the 1960s to the present day. See our revamped spares section to find what you need.

NB. The 30% Accessory Discount is now available for most lava lamp spares.

Shop Replacement Parts

Mathmos packs of 10 lava lamp bulbs

Packs of 10 Bulbs

Watch out for packs of 10 lava lamp bulbs available next month. Since most of the cost of the bulbs is in the packaging, handling and shipping we are able to offer them in quantity at much more competitive prices.

Shop Bulbs

Win an Anglepoise – Instagram Giveaway

We have teamed up with Anglepoise in a mutual giveaway ending 20th September 2020. We have much in common with this heritage British lighting company including the belief that our products should continue their lives for as long as possible.

Win An Anglepoise here

Shops, Survey & Collector’s Special

Mathmos lava lamps shops in London UK - 80s - 90s

Mathmos Shops of the Past

We had some great London shops, see our Instagram and Facebook for images. One of the benefits was that we met a few of you face to face and could get to know you and find out what you thought of us.

Mathmos lava lamp factory in Poole dorset UK

Mathmos Shops of the Present

For years now we have been reaching many more of you directly from our many European websites, supplying you with our unique products fresh from our factory. Since we no longer meet you face to face we would love to know more about you and what you think of us.

Please Take Our 3 Min. Survey

Please take our quick survey for a chance to win one of 10 astro lamps. We will pick winners randomly and send you the colourway of your choice anywhere in Europe.

Take Our Survey

Collector’s Specials

Watch out for the next collector’s special day on Wednesday the 5th of August. On that day only we will be taking orders for historic colourway blue liquid with red lava in baby and telstar bottles. They will be made to order and shipped around two weeks later.

Handmade in Europe

Mathmos lava lamp factory image. Lava lamps Made in Britain.

Mathmos has teamed up with another proud European craft based manufacturer on a reciprocal giveaway.

Like Mathmos Andy Wolf make their quality products themselves in Europe; Mathmos in Britain and Andy Wolf in Austria and France. Our heroic production staff have been working safely in our new factory throughout the pandemic.

Mathmos lava lamps. Hand spun base and caps made in Britain since 1963
Andy wolf sunglasses images with Mathmos lava lamps.

Mathmos Astro & Astro Baby

Mathmos lava lamps feature in the recent eyewear campaign by Andy Wolf Handmade glasses in Austria. Win a pair of their fabulous sunglasses in our Instagram giveaway.

Enter Our Instagram Give Away

Children’s Art Giveaway


Let’s get creative! We are hosting a competition for kids to create their own Mathmos masterpieces for a chance of winning an all ages Mathmos Neo lava lamp of their choice. For more details follow us on Instagram or Facebook and see posts our posts from the 29th of April. See here for Ts & Cs.

We have been gifting Neo lava lamps to hospitals, local schools and charities to help provide some calm in these strange times.

The Neo lava lamp prizes are suitable for all ages and can help with people’s wellbeing and stress relief as they can focus on the soothing flowing lava. Find Neo Lava Lamp Here.

Stay Safe & Calm at Home

Stay Safe – Home Working

Many of us at Mathmos, like many of you, are now staying safe and working efficiently from home. Only those of us involved in manufacture and despatch are going into our new factory. Luckily we now have lots of space and have put in protocols to ensure that everyone is as safe as possible and the business continues to run smoothly.

Covid-19 FAQs

Stay Calm – Instagram Competition

How do you stay calm when working from home? We suggest taking a moment away from your screen to focus on the gentle movement of coloured lava. We have just given away 10 Mathmos lava lamps in a recent Instagram competition. Follow us @mathmos_originals to take part in future competitions. 

Stay Calm – Home Schooling

Many of us are now homeschooling our children, some are homeschooling and home working; not easy.

Extended Returns

For your peace of mind, we have now extended our returns to 90 days.

Covid-19 FAQs

Mathmos in Poole

We are currently in the window of the museum in Poole for the local light festival. Poole is home to Mathmos and has been since our invention of the lava lamp in 1963.

Watch our Video

Amongst other activities we made a video for the museum and for the Light Up Poole digital light art festival. The video runs through our 56 years in Poole. Watch video here

Early Days of the Astro Lava Lamp

by Christine, former wife and business partner of inventor and founder of Mathmos Edward Craven Walker (ECW)

“Edward Craven Walker (E.C.W.) saw a primitive form of a lava lamp used as an egg timer in The Queens Head pub in the New Forest, near Poole. He was captivated by the movement of the liquids and set out to develop the idea into a workable light.

He worked hard and eventually developed an interesting and fascinating form of lava movement. The company was then formed in September 1963, a small workshop unit was set up in Poole and manufacture started with just a few members of staff. The first patent was filed by the company in 1964 under the name of Dave Smith, a member of the team working under E.C.W. for a short time, developing an early method of sealing the bottles.

The first Astro lamps manufactured ruined when moved about by carrier and could only be delivered by our own transport. So we acquired an old Post Office van, which we called “Smokey” because it was grey and yes, it smoked! Nevertheless, it was driven to shops all over the country to deliver the precious cargo.

As demand grew it became urgent to produce a lamp where the waxy component became a solid when cold so that the lamps did not ruin when moved. This had to be done in secret as there was a lot of intrigue and suspicion around at the time! We spent hundreds of hours finding and getting hold of different chemicals with which to experiment. We had some of the chemicals delivered to other addresses so that the people at the factory did not know what they were. Or we transferred the chemicals to plain sacks for the same reason. Much of the testing was done in the workshop out of hours and at home. We had a testbed set up in one of the rooms at home and spent many, many hours watching, timing and comparing different shapes with different chemical combinations.

E.C.W. was determined to find a solution and eventually we found the right formulation. For a period, he would make up part of the formula without telling anybody what it was. Also, during this time, we found a glass manufacturer who would make bottles with screw tops to overcome the problem of sealing. In 1966 we filed more patents, employed more people, started doing trade shows, met partners in the US and Japan and took over more workshops in the boatyard in Poole – things really started to take off …”

New iO Giant Lava Lamp

We are delighted to announce the launch of iO Mathmos’ new giant lava lamp standing at 78cm (2.5ft) tall. After years of development, this fantastic new lamp is on sale now.
(We’re doing everything we can to get the next batch ready so you can have them before Christmas, but this means we will temporarily be raising the price of iO from £375 to £425 to allow for increased production costs. We hope that the price will drop again next year.)

Unique Shape

iO is made of solid precision cast metal with a chrome finish. The complex design ensures that iO is held securely together and also looks fantastic from any angle.

FIRST100 Numbered Collectors Editions

We are numbering the FIRST100 produced with a unique etched number on the base and sticker on the box. Move quickly to own one of the early numbers and secure one of these collector’s editions. (Now SOLD OUT).


Mathmos Design Studio have worked closely with award-winning designers J.Coles and J.French over a number of years to design and develop the iO.