The total Height of the Lamp Head is only 16mm high.

The usable Diameter is 98mm. 

Insdide of the Lamp head is lot of aluminium that reduces the usable high to 8 mm. This would be too less for installing electronics. So I decided to Cut with my Dremel some pieces where I need more Headroom for a Microcontroller.

I always keep in mind that i still want to use the original Screws and Lampshade covers. I did not want to build a new one due to the fact that plexi glass PMMA is difficult to handle during manufacturing process.