Some kitchens, like mine, have a fluorescent tube hanging under the kitchen cupboards. In my case the end cap had broken off. This endcap snaps in place and essentially bends the electrical contacts so they are in contact with the tube. It also holds the tube up and prevents fingers from accidentally touching the electrical contacts.
Fusion 360 archive file added to allow additional tinkering. Good luck!
Printer:
BIQU B1
Rafts:
Doesn't Matter
Resolution:
0.2mm
Notes:
Depending on the accuracy of your printer and ability of your slicer to ensure proper bridging you may be able to use the "merged" model or use the separate models which has a separate top cap.