my badNo, the interior of the 8NX looks nothing like this.
I thought there is a follower to my very old "8X" model, called something like "8XN" or so.
Sure the "8NX" interior is other, You showed a pic in post #5
(btw.: good pics, all of them)
Form the posts, I get the feeling we both mean the same thing, with only one difference:
I would never ever accept any LA inside the light that can move, be it supressed by the battery, or not
(even if the spring presses the smaller diameter led insert against the glass, a good hit and it will move. Even more bad when there is force from the spring, a nice cut to the glass is sure then, imho)
Therefore the only difference between our sayings is:
for me it is a must to insert something between reflector and bezel that pushes the insert down into the head, to fight it being loose (and to fight it pushing against the glass)
something like this here (another light):
the original reflector (right) has wider diameter.
The smaller one on the left would be loose inside the head, as the bezel ring only pushes at the very outside (of the wide original reflector)
and the glass is a few mms away, it would not fix the new one
therefore --> inserting a (crude) "ring" that touches the smaller new reflector and extends out to the diameter needed
inside the light, showing that the transparent ring gets out to the body
with the bezel ring screwed on, no move of new reflector possible:
something like this has to be added to the led-insert inside the 8X/8NX head.
Has to extend to the "seat"part of the original Light Assembly and, with bezel secured, makes movement of the insert impossible