LED cover printed in 2 pieces )left + right), place on top glass or on the top wall of the printer without the glass (magnets can be added). Dowwload left + right piece.

The LED@ Amazon

SEBSON LED Unterbauleuchte neutralweiß 30cm - LED Leiste 4W 300lm 4000K Lichtleiste mit Stecker und Schalter 230V IP20 24x13x300mm : Amazon.de: Beleuchtung

The LED is fixed inside the cover with a double sided tape. No glue is needed.