Lumos

The ultimate creative sidekick, compatible with over 13 tips and more than 50 inks.

Colours & material

Each line in its own colours. The choice happens on the product page. Swatch tints are indicative – the real finishes will be photographed.

From the refill-ution

What writers say

4.8 8,003verified studio reviews
10,000+ writers have made the switch
★★★★★

Finally stopped losing biros

I take notes in every meeting and I was getting through a pack of gel pens a term. This is the first pen I've actually looked after. Six months in and the line is identical to day one.

Hannah M. · Verified buyer
★★★★★

Survives my terrible notebook

Work gives us the cheapest possible pads and most fountain pens bleed straight through. This doesn't. That alone was worth it - the fact it looks like this on the desk is a bonus.

Daniel O. · Verified buyer
★★★★★

Refilling is oddly satisfying

Took me a week to stop expecting it to run out. One dip does me about a month, and the starter ink lasted until I got round to buying a proper bottle. Only wish I'd known to order a second colour.

Priya R. · Verified buyer

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

The Lumos Pro Duo Refillable Pen in Midnight on illustrative background
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 cross-hatching
0.3 Fineliner Sketching, planners, small notes
0.5 Fineliner Everyday lines and lettering
0.8 Fineliner Bold outlines and headers
1.0 Fineliner Titles, filling, big marks
0.3 Writing Neat entries, trackers, tiny calendars
0.5 Writing Flowing daily pages
Chisel Felt-tip Calligraphy, headers, highlighting with fluoro ink
Brush Felt-tip Brush lettering, shading, washes
Bullet Felt-tip Bold, even marks and doodles

Why it exists

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.

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. So I designed the Lumos.

Refillable, for life

Ink from the bottle, tips you can swap, every part is repairable and replaceable. If something breaks, we have spares and accessories available at all times or you can pop it in the post and we will repair it in the studio.

For your pen