The hole for E27 socket has a diameter of 41mm and a height of 15mm.
Used Material: PLA
Example Formicarium: https://www.antstore.net/shop/de/Formicarien---Nester/Ameisenarenen/Ameisenarena---antcube/ANTCUBE---Arena-20x10x10---lang-4211.html
Example E27 Socket: https://www.antstore.net/shop/de/Klimatechnik/Beleuchtung/Lampenfassungen/Ameisenarena---Lampenfassung---E27-product-5148.html
The author marked this model as their own original creation.