I did this in the wingtips of my seneca.

http://www.rmdaircraft.com/hid.html

Fantastic.

You won't regret going hid. I am thinking about putting hid's on my nose
gear in place of the two landing lights.




Mike Rapoport wrote:
Has anyone installed Xevision HID lighting on their airplane under a 337
approval? How do you like it? Any issues getting approval? I landed my
Helio in the dark yesterday which worked out OK but I would prefer a
reliable landing light!

Mike
MU-2