I'm trying to suss out a reduced output issue I'm having with some of my fixtures. They're all about the same age, but have seen differing amounts of (random) service.
I'm suspecting it's an issue with the reflectors, but I'm not sure what to look for to confirm this - a rudimentary inspection doesn't show much, if any, difference (to my eye, at the moment) between a "good" fixture's reflector and a "bad" one.
Suggestions? Recommendations?