FYI I’m now using eSun GITD but the non-rainbow variant; just the regular green one.

Orange, and especially blue, have basically no glow to them whatsoever, so don’t use those.

This is the one I’m now using: https://esun3dstore.com/products/esun-luminous-pla-1-75mm-3d-filament-1kg?variant=42987305926871

It’s pretty good, an performs a lot better than any of the rainbow ones, and better than the green one from ERYONE

No, I want filaments which glow in the dark, after being charged by (UV-) light.

You’re correct in that none of them would be very bright; I just want as bright as possible 🔆

But thanks anyways 😸✨