I wonder if someone here with suitable test equipment could run a graph on a chemical glowstick, the ordinary 12 hour kind, not a special fancy one. I’m basically hoping for a rough estimate of the lumen output and its decay over time. I did a bit of web search and got drastically varying numbers. I guess I could make an eyeball estimate, but would want to use a reflector of some kind for the ceiling bounce. Does anyone know if reflectors like the below are still being made? Of course I can DIY one if necessary. Web search didn’t find anything quickly, but it’s difficult to keep the results relevant. https://www.worthpoint.com/worthopedia/nos-vintage-glow-stick-lantern-1960s-4706797024 I’m quite dubious of chemical light in this day and age, but they come up in discussions sometimes, so I’m interested in a concrete comparison against flashlights. Thanks! Added: I’m happy to reimburse the cost of a few glowsticks if you’re up for running this test. Or it’s possible that I could order some and have them sent to you (Home Despot free delivery). PM if you want this.