The stand is created to hold three flat lithophanes that are 100 mm wide by 105 mm tall.
I used LED Strips across the rear of the box for the lighting.
This is the switch that I used.
https://www.amazon.com/gp/product/B01N2U8PK0/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
This is the panel mount connector I used.
https://www.amazon.com/gp/product/B01N8VV78D/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
The author hasn't provided the model origin yet.