Colourbing Glow-in-the-Dark PLA+ Filament, 1.75 mm, Firefly Blue

Colourbing Glow-in-the-Dark PLA+ Filament is a 1.75 mm Firefly Blue material for FDM printing, marketed for luminous ornaments, miniatures, and DIY crafts. The listing describes a 1 kg spool and says exposure to sunlight or UV light charges the glow, which naturally fades over time.

At a glance

Listing specifies standard 1.75 mm filament and describes compatibility with most mainstream FDM printers.
Glow effect is said to improve after exposure to sunlight or UV light. The listing recommends about 30 minutes for an ideal effect.
Brightness varies with lighting and print wall thickness, and the glow fades naturally over time.
The manufacturer claims neat winding, ±0.03mm dimensional tolerance, and vacuum-sealed packaging with desiccant.

Price

$22.99Save 15%

Reference price: ~~$26.99~~

Price checked: Nov 14, 2026

View offer

Pros and cons

Pros

A luminous blue finish is suited to decorative prints such as miniatures, ornaments, nightlights, and crafts.
The stated 1.75 mm diameter targets many FDM printers that use this common filament size.
Vacuum packaging with desiccant is claimed, which may help protect the filament during storage.

Cons

Customer feedback reports that the filament can be brittle and break more easily.

Technical specifications

5 specifications

Identity
Brand	Colourbing

Dimensions and installation
Weight listed	2.2 pounds
Filament diameter	1.75 millimeters

Materials and protection
Material listed	Polylactic Acid
Listed color	Crystal Firefly Blue

What to know before buying

Listing details to confirm

The title describes a 1 kg spool, while the details list a weight of 2.2 pounds. Confirm the selected listing and spool quantity before purchase. The manufacturer recommends charging the glow with sunlight or UV light and storing the filament in a dry place.

Who is it for?

A good fit for

FDM printer owners seeking Firefly Blue filament for glow-in-the-dark decorative projects.
Hobbyists printing miniatures, luminous ornaments, nightlights, or DIY crafts.

Less suited to

Buyers who need filament with no customer-reported brittleness concerns.
Projects requiring a glow that remains consistently bright without prior light exposure or over time.

Colourbing Glow-in-the-Dark PLA+ Filament, 1.75 mm, Firefly Blue · photo 2 — Additional product photo 2

Customer reviews on Amazon

4 / 5 · 63 ratings

5 stars58%58%
4 stars16%16%
3 stars5%5%
2 stars8%8%
1 star13%13%

Customer feedback describes printing as decent but also reports that the filament breaks more easily. Those comments point to a practical trade-off for projects using the listed 1.75 mm FDM filament: printability is noted positively, while brittleness may complicate handling and feeding. Aggregate ratings are mixed, so they do not establish how common either experience is.

Positive themes

Customers describe the filament as printing decently.

Negative themes

Customers report brittleness and easier breakage.

Frequently asked questions

How is the glow effect activated?

The manufacturer says to expose the printed material to sunlight or UV light, recommending about 30 minutes for an ideal glow. Brightness varies with exposure and print wall thickness, then fades naturally.

Which printers is this filament intended for?

The listing describes 1.75 mm filament for most mainstream FDM printers. Check that your printer accepts this diameter.

What should I know about brittleness?

Customer feedback reports that the filament breaks more easily. Handle and feed it with that reported concern in mind.

Is the package definitely one 1 kg spool?

The title says 1 kg spool, but product details list the item weight as 2.2 pounds. Confirm the selected offer's spool quantity before ordering.