I know. I know. Nothing to do with alarms, but...
I used to get chemical flares that were decently bright and would glow for a long time. Pretty bright for 7-8 hours and a dim glow (in the dark) after
18-20 hours.
Now all the ones I get seem awfully dim, and they are DEAD at 7-9 hours.
You guys know a source for good ones?