One design is in a purple glow in the dark PLA, one design is in Matterhackers MH Builder series purple, the lights i use is the cheapest i can find, i use a sheet of tissue wrapping paper to soften the light so you cant see the LED's. Yes my links are afailiates because i have to support my habbits lol You only need a single light with remote, i got the 4 pack as i am doing so many…Yes i am properly licensed through each college i sell. Sell at your own risk.

Light- https://amzn.to/3LOxmQg

UV Light- https://amzn.to/3rCgplb

Tissue- https://amzn.to/3ZR2vrZ

Filament(Glow in the Dark Purple)- https://amzn.to/3RNC5pg