I wasn't finding a lot of Minecraft lamps designed to use regular light sockets. This is designed to use a standard E12 (candelabra) socket.
https://www.amazon.com/gp/product/B00WZUAO6I/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1
I also included the lamp base pieces as OBJs so that one may edit them.
The light diffuser you see was made by slicing a 150mm cube in vase made and using clear translucent filament. The light is a full color Philips smart bulb.
Measurements are in the drawing.
Notes:
You may want to up your density to prevent the light from coming through the walls. I plan on masking my print and painting the inside to help seal it. My walls ended up deforming and I had to file down the teeth to get everything to fit. I glued the 5 lamp walls and then the two lamp bases pieces, but don't glue the walls into the lamp base.
The author hasn't provided the model origin yet.