This is a bulb adapter for this Nuke Lamp http://www.thingiverse.com/thing:575815

I use this bulb sockets http://www.amazon.de/gp/product/B00P65F040?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s01 with this bulbs http://www.amazon.de/gp/product/B00VUFWHSW?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00

Outer diameter from my bulb socket 18mm, hole diameter 3,5mm, height 25,5mm, width between the holes 13mm

You can put in the adapter into the lamp base an the bulb socket on the adapter... voila... no need of srews or glue....

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