I totally agree with
Mark's observations in never having seen an intact
filament, blackened, melted and bent
reflector.... No glass, and sand (filler inside the
base) from the
ceramic glue holding it in breaking away and letting the sand out.
-Was the silica sand inside, the
fixture hung up side down and than the sand draining down after the catastrophic event?
-Can you take a photo of the side label of brand/printing? Not familiar with a fluted
ceramic support for the lamp. ( I don't buy/use them much these days.)
-I have seen something similar to this before!
Way back when... like 15 or more years ago we were using a lot of 6-cell 1Kw
cyc lights as normal for a summer music festival. Reflectors had similar damage and lamps were blowing out. Not simialr lamp and not studied if intact, but possibly similar
reflector damage.
After some study, we surmized (department head denied it).. that some tech person cleaned the reflectors with Goof Off before the show! Was a sustainable theory in what happened and possibly similar.
If the case... that would be a stand down moment in cleaning all lamps/reflectors ASAP!