Hi Guys.
Going Forward with my robotic lamp, I used a emissive face that I extruded from the square internal face of the shade and then I separeted it from the mesh to get the exact location and parent it to the mesh.
Since my light is a square light and not a bulb I feel that the spot light will not fit quite well.
Here there are two renders.
with the others lights on
without the scene lights on
Greetings,
Kraventh