The Lumos Pro Duo Refillable Pen in Midnight on illustrative background
The Lumos Pro Duo Refillable Pen in Midnight with sample lettering and illustrations in fountain pen ink
The Lumos Pro Duo Refillable Pen in three colours (left to right) Sage, Blush, Lilac with fineliner and brush tips
Detail of Chisel Fibre Tip on the Lumos Pro Duo Refillable Pen in Midnight on illustrative background
The Lumos Pro Duo Refillable Pen in Ivy and Black with fineliner and brush tips
The Lumos Pro Duo Refillable Pen in Lilac with fineliner and brush tips
The Lumos Pro Duo Refillable Pen in Blush with fineliner and brush tips
The Lumos Pro Duo Refillable Pen in Sage with fineliner and brush tips
The Lumos Pro Duo Refillable Pen in Raspberry with fineliner and writing tips
Full Lumos Creative Tip Set showing 11 individual Lumos tips with annotation explaining each size of tip
Notice describing compatible ink for use in the Lumos and Wren pens with fountain pen ink swatches
Included with every Lumos pen – Full creative tip set and 3ml black fountain pen ink sample
Image showing the Lumos reservoir being refilled from a bottle of Tom's Studio Fountain Pen Ink
Annotated image of all colours of the Lumos Pro Single refillable pen
Annotated reference image of all colours of the Lumos Pro Duo
The Lumos Pro Single Refillable Pen in Matte Black on white background
The Lumos Pro Duo Refillable Pen in Matte Black on white background
The Lumos Pro Single Refillable Pen in Midnight on white background
The Lumos Pro Duo Refillable Pen in Midnight on white background
The Lumos Pro Single Refillable Pen in Blush on white background
The Lumos Pro Duo Refillable Pen in Blush on white background
The Lumos Pro Single Refillable Pen in Sage on white background
The Lumos Pro Duo Refillable Pen in Sage on white background
The Lumos Pro Single Refillable Pen in Raspberry on white background
The Lumos Pro Duo Refillable Pen in Raspberry on white background
The Lumos Pro Single Refillable Pen in Ivy on white background
The Lumos Pro Duo Refillable Pen in Ivy with packaging on white background
The Lumos Pro Single Refillable Pen in Lilac with packaging on white background
The Lumos Pro Duo Refillable Pen in Lilac on white background
The Lumos Pro Duo Refillable Pen in Midnight on illustrative background
Video showing contents of Lumos Pro including Lumos Pro Refillable Pen, full creative tip set and 3ml black fountain pen ink sample
The Lumos Pro Duo Refillable Pen in Midnight with sample lettering and illustrations in fountain pen ink
The Lumos Pro Duo Refillable Pen in three colours (left to right) Sage, Blush, Lilac with fineliner and brush tips
Detail of Chisel Fibre Tip on the Lumos Pro Duo Refillable Pen in Midnight on illustrative background
The Lumos Pro Duo Refillable Pen in Ivy and Black with fineliner and brush tips
The Lumos Pro Duo Refillable Pen in Lilac with fineliner and brush tips
The Lumos Pro Duo Refillable Pen in Blush with fineliner and brush tips
The Lumos Pro Duo Refillable Pen in Sage with fineliner and brush tips
The Lumos Pro Duo Refillable Pen in Raspberry with fineliner and writing tips
Full Lumos Creative Tip Set showing 11 individual Lumos tips with annotation explaining each size of tip
Notice describing compatible ink for use in the Lumos and Wren pens with fountain pen ink swatches
Included with every Lumos pen – Full creative tip set and 3ml black fountain pen ink sample
Image showing the Lumos reservoir being refilled from a bottle of Tom's Studio Fountain Pen Ink
Annotated image of all colours of the Lumos Pro Single refillable pen
Annotated reference image of all colours of the Lumos Pro Duo
The Lumos Pro Single Refillable Pen in Matte Black on white background
The Lumos Pro Duo Refillable Pen in Matte Black on white background
The Lumos Pro Single Refillable Pen in Midnight on white background
The Lumos Pro Duo Refillable Pen in Midnight on white background
The Lumos Pro Single Refillable Pen in Blush on white background
The Lumos Pro Duo Refillable Pen in Blush on white background
The Lumos Pro Single Refillable Pen in Sage on white background
The Lumos Pro Duo Refillable Pen in Sage on white background
The Lumos Pro Single Refillable Pen in Raspberry on white background
The Lumos Pro Duo Refillable Pen in Raspberry on white background
The Lumos Pro Single Refillable Pen in Ivy on white background
The Lumos Pro Duo Refillable Pen in Ivy with packaging on white background
The Lumos Pro Single Refillable Pen in Lilac with packaging on white background
The Lumos Pro Duo Refillable Pen in Lilac on white background

Lumos Pro - The Infinitely Refillable Pen

A beautiful & infinitely refillable fineliner, writing & brush pen including 11 professional artist's tips.

£59.00 Bundle & Save
Type Single Tip
Colour Matte Black

A beautiful and infinitely refillable fineliner, writing, and brush pen, including 9 professional artist's tips and 2 writing tips.

Too many pens and their refills are disposable by design. Similar to printer ink cartridges, pen companies want you to buy into their format so they can keep selling you replacement pens or refills repeatedly. It's good for their business, but it's bad for the planet and stifles creativity.

"It is brilliant: Beautiful, the perfect weight, a range of nibs, satiny ink. The drawing (almost) does itself."
David Downton

As a product designer and craftsman who loves using a variety of pens to create illustrations and designs, I had this very problem! Pens would sit in my drawer for years, either patiently waiting for that very specific refill, or I was just loath to dispose of an otherwise fully functional pen that had run out of ink.

Having designed and handmade calligraphy and fountain pens for creative folks across the world full-time for over 6 years, I decided it was time to apply my knowledge to the pen I used most of all and one of the biggest culprits when it came to its disposable nature: the fineliner.

    Included in the box:

    • The Lumos Pro Single or Duo in your choice of colour – grippy matte black or satin-finished Sage, Lilac, Ivy, Raspberry or Blush
    • The Lumos Full Creative Tip Set
    • 3ml Deep Black Ink sample
    • Ink Reservoir (Lumos Pro Single x1, Lumos Pro Duo x2)

    Specifications:

    Lumos Pro Single/Duo

    • Length capped – 155mm
    • Length uncapped – 145mm
    • Pen barrel diameter – 10mm
    • Weight – 20g
    • Made from Anodised Aluminium

    The Lumos Full Creative Tip set contains 11 tips:

    • Fineliner: 0.1, 0.2, 0.3, 0.5, 0.8, 1.0
    • Felt-Tip: Chisel, bullet & brush
    • Writing: 0.3, 0.5

    Full FAQs and a video guide to getting started with your Lumos can be found here.

    What ink can I use?

    The Lumos is compatible with dye-based Fountain Pen Inks, so long as they don’t contain particles (such as shimmer inks) or binders (like acrylic or shellac).

    Exception to the rule? We sell a splendid waterproof pigment ink (our own No.60 Fountain Pen Waterproof in Pigment Black). Or, if you want to splash out, Sailor Kiwa-Guro ink is a great option too.

    What are the differences between the Duo and the Single Lumos?

    The Single Lumos has one tip and one ink reservoir, which is double the Duo's reservoir size.
    The Duo Lumos allows you to have two different pens in one body, allowing you to easily change between nibs and ink colours on either side.

    Can I purchase replacement tips and reservoirs for my Lumos?
    Yes! Everything you need for your Lumos is listed below:

    Shipping costs are calculated at checkout.

    For dispatch times, customs details, and more, please visit our Delivery page. If you have any questions, feel free to reach out to us at hello@tomsstudio.co.uk – we’re here to help!

    Also available in mini

    Brilliant ink for bold ideas!

     
    Selection of Tom's Studio Fountain Pen Inks in their boxes
    Save £8.97

    Pick 'n' Mix Fountain Pen Inks

    Choose three 50ml bottles of Tom's Studio Fountain Pen Ink, Save 20%.

    £35.88 £44.85
     
    Tom's Studio Mallard Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 07 Mallard

    A deep blue-green, like the plumes of a mallard duck

    £14.95
     
    Tom's Studio Juniper Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 12 Juniper

    What better inspiration than the Juniper plant, with its delicious bounty of deep purple berries.

    £14.95
     
    Tom's Studio Marianas Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 14 Marianas

    This deep blue ink reflects the ocean’s mystical depths.

    £14.95
     
    Tom's Studio Loch Ness Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 08 Loch Ness

    There are no monsters in this bottle, but plenty of inky goodness to keep you writing for longer.

    £14.95
     
    Tom's Studio Neptune Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 03 Neptune

    Neptune’s vast seas in a bottle – ocean-blue ink

    £14.95
     
    Tom's Studio Constellation Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 09 Constellation

    This beautifully purple-toned ink is a clear night sky in liquid form.

    £14.95
     
    Tom's Studio Damson Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 17 Damson

    Autumn sunshine bottled – this plum coloured ink reminds us of picking damsons in the sun.

    £14.95
     
    Tom's Studio Raspberry Sorbet Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 02 Raspberry Sorbet

    This refreshing, hot pink ink brings to mind those hot summer days, when colours are always at their brightest.

    £14.95
     
    Tom's Studio Deep Black Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 01 Deep Black

    Classical doesn’t have to mean boring, the very deepest of blacks.

    £14.95
     
    Tom's Studio New Forest Green Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 04 New Forest Green

    We love this little corner of England so much that we decided to name this rich shade of green after it.

    £14.95
     
    Tom's Studio Marmalade Fountain Pen Ink – featuring the packaging, bottle and a swatch on paper

    Fountain Pen Ink - 18 Marmalade

    We bring you liquid sunshine in a bottle of ink.

    £14.95

    Customer Reviews

    Based on 801 reviews
    88%
    (707)
    8%
    (61)
    2%
    (18)
    1%
    (7)
    1%
    (8)
    J
    Janie B.
    Lumos Duo

    I’m so impressed with this pen. The colour (raspberry) is beautiful and it’s a whole new writing/ drawing experience. I love that there are interchangeable nibs and a handy little cover so your hands stay clean when changing the nibs. I’m thinking of getting another one to keep in my handbag. I’ve been able to get rid of all of my timelines, so therefore less waste/less expense.

    C
    Cheryl F.
    Love my Lumos!

    My Lumos is the latest addition to my art journey in retirement. I began with watercolors in April of ‘23 and now have added sketching to my daily practice. The Lumos is super smooth with the option of various sized nibs. Today’s project was a sunflower and I’m very pleased with the results. Thank you Tom’s Studio!

    A
    Amy D.
    So good I had to get a second one. And then a third.

    I’ve had a single tip Lumos for a couple of years now and adore it. Then I bought a Duo Tip and have loved that. And this makes my second Duo Tip - because for creating artwork, writing, and just general daily use - having three nib & ink options was just not enough. Can confirm that five options is better than three. Also likely that I’ll add another Lumos to the family at some point.

    I’m a graphic designer and artist - Lumos has replaced all the fine-liners that used to live in every bag, backpack, pen jar and pocket - and I went through a lot of fine liners. Feels great to be creating less waste and using the bottled ink that I’ve had around for using in fountain pens for a decade or so. But most of all, these are smooth flowing pens, the nibs are durable and I’ve only worn out a couple of nibs over a few years of writing - which is much more than I can say for the tips on throw away fine liners.

    K
    Karin S.
    IN LOVE

    Thank you for the amaaaaaazing products you create. My life is more pleasurable with my new pens and inks and paper and the aroma of the wood pencils… omgggg. No words. Thank youuuuuu❣️

    M
    Michelle Z.
    🌟🌟🌟🌟🌟 The Last Pen You'll Ever Need (In the Best Way Possible) 🌟🌟🌟🌟🌟

    Okay, let’s be real—I did not expect to have strong feelings about a pen. But this thing? Absolute game-changer.

    First off, it’s beautiful. Like, the kind of pen that makes you feel fancy just holding it. The weight is perfect—not too light, not too heavy—just enough to feel like you know what you’re doing, even if you’re just doodling stick figures.

    But the best part? It’s endlessly refillable. No more graveyard of dried-up pens in my desk drawer. No more hoarding a pen body, hoping I’ll magically find the right refill one day. This one is designed to last forever, which is amazing because I never want to be without it.

    Oh, and the nibs? Absolute perfection. You get nine different artist tips and two writing tips, which means you can go from journaling to sketching to inking your next masterpiece (or just aggressively underlining things in your planner) all with the same pen.

    Seriously, if you love pens, drawing, or just hate waste, this is the one to get. I don’t throw around the term “life-changing” lightly, but if a pen could be life-changing… this would be it.

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