FLASHFORGE Rapid PLA Luminous Blue Glow Filament, 1.75 mm, 1 kg

FLASHFORGE Rapid PLA Luminous Blue filament is a 1.75 mm PLA spool promoted for high-speed printing and glow-in-the-dark projects. The listing claims printing speeds up to 500mm/s and a glow that can last 5-100 minutes, but customer feedback is mixed on glow and printer compatibility.

At a glance

Glow-in-the-dark blue PLA intended for decorative and creative prints.
The listing promotes rapid melting and smooth flow for printing speeds up to 500mm/s.
Manufacturer claims low shrinkage, layer adhesion, and first-layer bed adhesion.
Glow brightness and duration are listing claims, not independent performance measurements.

Price

$19.19Save 20%

Reference price: ~~$23.99~~

Price checked: Nov 12, 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

ELEGOO PLA 3D Printer Filament 1.75mm Black 1KG | Dimensional Accuracy +/- 0.02mm, 1kg Cardboard Spool(2.2lbs) 3D Printing Filament, Fits for Most FDM 3D Printers

$13.99

Pros and cons

Pros

A 1 kg spool supports larger or multiple prints without needing a smaller sample roll.
The glow effect suits crafts, art installations, and holiday decorations where visibility in low light is desired.
The 1.75 mm diameter is stated clearly for checking against a printer's filament requirements.

Cons

Glow-in-the-dark appearance and performance may not suit prints intended to look like ordinary solid blue PLA in all lighting.

Technical specifications

9 specifications

Identity
Brand	FLASHFORGE
Model	LBUS

Dimensions and installation
Filament diameter	1.75 millimeters
Weight listed	1 kg

Materials and color
Material listed	Polylactic Acid
Color	Luminous Blue

Printing and glow claims
Claimed print speed	up to 500mm/s
Claimed glow duration	5-100 minutes
Claimed glow brightness enhancement	310% enhancement in brightness compared to standard glow-in-the-dark materials

What to know before buying

The listing claims a glow duration of 5-100 minutes and a 310% brightness enhancement, but customers report mixed glow results. Actual performance may vary with light exposure and use. Confirm compatibility with your printer and its filament requirements.

Who is it for?

A good fit for

3D-printing hobbyists making luminous decorative pieces, crafts, or themed models.
Users whose printer accepts 1.75 mm PLA and who want a rapid-printing filament option.

Less suited to

Buyers who need a guaranteed glow brightness or duration for a specific application.
Users who need filament compatibility confirmed for a particular printer model.

FLASHFORGE Rapid PLA Luminous Blue Glow Filament, 1.75 mm, 1 kg · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 838 ratings

5 stars83%83%
4 stars8%8%
3 stars4%4%
2 stars1%1%
1 star4%4%

Customer feedback praises print quality, color, appearance, and perceived value, with some reports of prints working well out of the box. Experiences are mixed for glow, printer compatibility, and adhesion, including reports of little glow, compatibility problems, or clogging. That variability matters for this filament because its main draw is the glow effect and the listing does not establish compatibility with specific printers. The aggregate ratings are mostly favorable, but ratings alone do not confirm consistent glow or printer performance.

Positive themes

Customers report positive experiences with quality, print performance, color, appearance, and value.

Mixed feedback

Glow results vary, with some customers reporting little to no glow.
Printer compatibility experiences vary, and some customers mention compatibility issues.
Adhesion experiences differ, including reports of clogging.

Frequently asked questions

What filament size and material does this spool use?

The listing specifies 1.75 millimeters and Polylactic Acid. Confirm that your printer is configured for this diameter and material.

How long is the glow claimed to last?

The listing says the glow can last 5-100 minutes. Customer feedback is mixed on glow performance, so treat this as a product claim rather than a guaranteed duration.

Does it support printing at 500mm/s?

The listing promotes speeds up to 500mm/s. Actual results depend on the printer and print settings, and the stated maximum is not a guarantee for every setup.

Is it compatible with my 3D printer?

The listing does not confirm compatibility with specific printer models. Check your printer's filament diameter and material requirements before buying.