The ultimate everything pen

Two tips, two inks, one pen.

The Lumos Pro Duo carries two tips at once – write with one end, highlight or draw with the other. Refill either end from a bottle of ink in 5 seconds. One pen for notes, journals, sketchbooks and lettering.

10,000+ purchased the world over
4.8 ★ from 8,066 reviews
11 tips in the box, Japanese-made
The Lumos Pro Duo Refillable Pen in Ivy and Black with fineliner and brush tips

Eleven Japanese-made tips

Every line you'll ever need, in the box.

Six fineliners from a hairline 0.1 to a bold 1.0, three felt tips for lettering, shading and highlighting, and two writing tips for everyday pages. All eleven come with the pen - swap between them in seconds.

  • 0.1 Hairlines, stippling, the smallest detail
  • 0.2 Fine detail and cross-hatching
  • 0.3 Sketching, planners, small notes
  • 0.5 Everyday lines and lettering
  • 0.8 Bold outlines and headers
  • 1.0 Titles, filling, big marks
  • Chisel Calligraphy, headers, highlighting
  • Brush Brush lettering, shading, washes
  • Bullet Bold, even marks and doodles
  • 0.3w Fine detail, with an extra-tough tip for everyday notes
  • 0.5w Bolder detail, perfect for headings and annotation
The Studio Pad refillable, customisable notebook and organiser with bullet journalling layout

Notes & study

Write with one end, highlight with the other. A chisel tip loaded with fluoro highlighter ink turns the same pen into a marker. The only pen you'll need on your desk.

the lumos duo refillable fineliner in sage with some botanical illustrations

Sketch & shade

A 0.1 fineliner for line work and a brush tip for shadow and wash. Switch between them without putting your pen down. Two artist tips, one hand.

An example of a rose illustration created using the Detail Brush Tip in the Lumos, in Marianas blue/green fountain pen ink

Letter & flourish

Chisel for broad-edge letters, a 0.3 fineliner for hairline flourishes. Same ink in both ends, or a second colour in one.

Two tips and two reservoirs in one body. Unscrew the middle, swap a tip, screw it back on. Ten seconds.

Find your Lumos
In the box: the Lumos Pro Duo, the full creative tip set and a 3ml Deep Black ink sample.

Eleven Japanese-made tips

One pen. Eleven lines.

Every tip in the box, and what it's for. Load any two at once, one at each end.

Tip Family Line Best for
0.1 Fineliner Hairlines, stippling, the smallest detail
0.2 Fineliner Fine detail and linework
0.3 Fineliner Medium detail
0.5 Fineliner Lines and lettering
0.8 Fineliner Outlines and headers
1.0 Fineliner Titles, filling, big marks
0.3w Fineliner Fine handwriting tip
0.5w Fineliner Bold handwriting tip
Chisel Felt-tip Calligraphy, headers & highlighting
Brush Felt-tip Brush lettering, shading, washes
Bullet Felt-tip Bold, even marks and doodles
The Studio Pad refillable, customisable notebook and organiser with bullet journalling layout
Notes & study

Write with one end, highlight with the other.

Sketch & shade

Line work one end, shadow and wash the other.

Detail of Chisel Fibre Tip on the Lumos Pro Duo Refillable Pen in Midnight on illustrative background
Letter & flourish

Broad-edge letters, hairline flourishes.

Why make the switch?

One pen instead of a pencil case.

A dual-ended Lumos does the work of a handful of disposables, with fineliner, brush, chisel and writing tips, all from the same body. Refill and it is good for another month of doodling, with nothing to throw away.

Two pens in one

Two tips and two ink reservoirs in one body. Swap ends instead of swapping pens – a fineliner in one hand movement, a brush tip in the next.

Eleven Japanese-made tips

Six fineliners from 0.1 to 1.0, chisel, bullet and brush felt tips, and 0.3 and 0.5 writing tips. The full set is in the box.

An ink at each end

Each reservoir holds its own colour, so you can run two at once. Choose from 30+ dye-based inks, plus our fluoro highlighter inks for the chisel tip.

Made properly

Machined, not moulded.

Each Lumos Pro Duo body is turned from solid aluminium, then hand-finished and packaged by our studio team. Precision and attention to detail make it a pen designed to outlast every sketchbook and notebook you'll ever fill.

The Lumos Pro Duo Refillable Pen in three colours (left to right) Sage, Blush, Lilac with fineliner and brush tips
  • Japanese-made tips
  • Hand-finished in the studio
  • Brass, Bronze & Stainless Steel editions
  • Built to be repaired, not replaced
  • Infinitely refillable

The Lumos family

Which Lumos is yours?

Infinite creativity or daily journaling

11 Tips with Endless Possibilities
Lumos Pro Duo

The ultimate everything pen – two tips, one body

Lumos Pro Duo

From 1 288,00 kr

  • Dual-ended – two tips loaded at once, with a reservoir in each end.
  • Includes the full tip set – 11 Japanese-made tips: fineliners, brush, chisel, bullet and writing tips
  • 10 colours to choose from, including Brass, Bronze and Stainless Steel
  • Your companion for notes, journaling, lettering and illustration
Lumos Write

The journaling pen – ready to write, straight out of the box

Lumos Write

From 651,00 kr

  • Pre-fitted with your choice of 0.5 or 0.3 tip and a 3ml starter ink
  • Refill the reservoir in just 5 seconds
  • 5 colours to choose from
  • Perfect for journaling, but compatible with any Lumos tip (available separately)

Both are infinitely refillable – dip the reservoir to refresh the ink

The details

How it actually works.

No cartridge, no pump, no converter. A machined body, a Japanese-made tip and a small fibre-filled reservoir that draws ink straight from the bottle.

  • Two reservoirsOne at each end, dipped separately – you can carry two colours at once, or the same colour and go twice as long between refills.
  • The tip familiesFineliners 0.1 to 1.0 for line work, chisel, bullet and brush felt tips for lettering, shading and highlighting, and 0.3w and 0.5w writing for everyday pages.
  • One lid, by designOne half of the pen caps the other, so there is nothing extra to lose. A second lid is available separately if you would rather cap both ends.
  • Body & finishesMachined aluminium as standard, with Brass, Bronze and Stainless Steel metal editions.
  • When it wearsAfter years of daily entries you replace the tip, not the pen. Thirty seconds, and you're writing again.
Find your Lumos

Before you ask

The four things people ask first

Do I need ink?

No, a 3ml mini ink is included to get you started. Once that's run out, a single 50ml bottle lasts most people a year or more.

One lid or two?

One half of the pen is the lid for the other, which keeps it nice and compact. A second lid is sold separately if you'd like to cap both ends.

Can I run two colours?

Yes. Each end has its own reservoir. Why not try a black writing tip at one end, a fluoro highlighter at the other?

Will it bleed or ghost?

No. The tip lays a controlled line without feathering, ghosting or bleed-through, perfect on dot-grid, lined pages and even standard 80gsm paper.

Compatible inks

Over 30 ink colours, two at a time

All of our dye-based fountain pen and fibre tip inks write beautifully in a Lumos Pro Duo. With a reservoir at each end you can colour-code as you go – one end in black for the words, the other in whatever the page needs.

Ink Collections

Six 5ml inks in a hand-painted box – From 54,00 kr

The easiest way to find your perfect match without committing to full bottles. Each box is hand-painted in the studio.

Browse all mini inks

Join the refill-ution

What Lumos owners say

4.8 8,066‎ verified studio reviews across the Lumos range
★★★★★

Incredible!

I wanted to just thank you for such a beautiful pen! I got a lumos and I've been running an experiment on how many pages I can write on one full reservoir, and so far I'm up to 21 pages with no sign of running out. What an incredible product. The balance and weight of the pen is perfect. Thanks again!

Malinie · Verified buyer
★★★★★

Best pen EVER!

I’ve had the Lumos Pro Single tip for only a day and I’m literally obsessed beyond belief. The pen feels nicely heavy in the hand, but not overly so, just right to feel expensive. The color options available? I want all of them! It writes so smooth it’s not even funny. This probably the only pen I’m ever going to own now. Price point well worth the quality.

Aliza H. · Verified buyer
★★★★★

I love this pen!

I love this pen! It looks beautiful, it writes beautifully and it is so easy to refill. It isn’t too heavy or too light. With the variety of tips available it is easy to get the exact writing experience you want. I have no notes. This is a great pen.

Trina · Verified buyer

The reviews above are from across the Lumos range – every Lumos shares the same body, tip system and refill mechanism. Reviews for this pen appear below as they come in.

One pen for every idea, and one you'll keep for life.

Shop Lumos Pro Duo