Lumos - Spare Ink Reservoirs

Spare ink cotton core reservoirs for your Lumos.

  • 6x42mm for the Lumos Duo.(pack of 5)
  • 6x85mm for the Lumos Single.(pack of 3)

Standard Shipping Costs:

UK: £4.95

EU: Our shipping costs vary by country and are calculated at checkout.

USA: from $10.50 (charged in local currency)

Rest of the world:

We Ship Internationally. We take care of VAT and customs duty for EU customers. Your order will be shipped within 48 hours when in stock, please refer to lead times of the product you are buying, as some handmade / hand dipped products may take longer until we send them. Delivery is calculated from dispatch. All UK orders are shipped using Royal Mail Tracked 48. If you need your order by a specific date there is a next-day Special Delivery option.


If your order contains a pre-order item, your whole order will be shipped together in order to minimise our carbon footprint. So please refer to pre-order delivery times in this instance. Alternatively, you can ask us to split the order. In this case additional delivery costs will apply. Please contact for further information.

Customer Reviews

Based on 18 reviews

Lumos - Spare Ink Reservoirs

Lumos Mini

I received my Mini yesterday and I am totally in love with this pen. It's beautifully made, the cartridge is easy to fill, the pen tip I'm trying is very smooth writing and the pen is lovely to hold while writing. I realize now I should have ordered a pack of extra cartridges while I was paying overseas shipping, but I didn't know then that I would love it so much!
The Ivy color is delicious! Thank you for a beautiful writing instrument!

This is wonderful to hear! Thank you so much for taking the time to send us this lovely feedback. Gemma

Barbara K.
Fantastic idea

The ink reservoirs work amazingly well and are simple to rinse out and reuse. Sheer brilliance.

Marilu S.

How can I change the ink cartridge? They are stuck. Thanks!

Hi Marilu, I'm sorry to hear that! Would you mind emailing Thanks! Gemma

Spare ink reservoirs

Great reservoirs. The ink does not dry easily. I can use my lumos pens for a long time.