This is a lightbox inspired by the famous “La Linea” lamp designed by Osvaldo Cavendoli.
It has the same dimensions as the original lamp.
You can use it as a lamp or as a book support as you like.
I powered it using cheap LED lights with remote from Aliexpress. You can find those here: https://nl.aliexpress.com/item/1005005485885067
You can see how they should be mounted in the last few pictures.