The name Babalamp is due to a typical Neapolitan pastry: the Babà. You know? :)
In particular, the shape of this lampshade vaguely resembles that of a Babà.
The project was devised for a specific LED light bulb (120mm diameter) with E27 plug (standard Edison).
Obviously, it can be adopted to other smaller sizes, I suppose.
NOTE: This lampshade is supplied with splits for heat rejection, but there are only intended to drain the heat generated by the power supply unit of the lamp. It CANNOT manage excessive heat of an incandescent lamp! Please, use only LED bulbs. And the environment will thank you too. :)