Thanks for takin’ the time to provide an update!
I also contacted Support, described the issue in my first detailed reply (the initial ticket creation facility that’s currently available doesn’t allow for much detail, so I wait until the system e-mails me and then I reply there so I can add more detail to the case and describe the issue at length), included information that I already knew they were going to request if they offered a warranty replacement, and they got back to me very quickly offering a replacement (I didn’t even ask for one yet!). 
Thanks again to @ssummerlin for cluing me in to the 3-year warranty on light bulbs! I really dig how cooperative this community can be with information sharing and problem solving. 