Finally sharing a follow up to my novel of a post about the flashlights of Season 4.
I have finally identified the base flashlight used to create the flashlights that appear after Episode 5 (when they all get destroyed)
It's a vintage Durabeam flashlight from Duracell!
If you look closely on the handle in the shot above, you can make out the "from DURACELL" text.
I presume, like the Silver Eveready mods, they used an actual Durabeam as the base and modified the end of it to accommodate for lighting control. You can tell the end of it was modeled after the real Durabeam, but is extended slightly, adding a section of red and a ridge to the bottom of it - again, similar to the custom larger head to the silver Eveready lights.
Funnily enough, if we look back at the Creel House sequence in 405, they also used the custom head that's based on the Durabeam light on Steve's silver flashlight:
This one they appear to have made a much more vibrant red, I assume to mimic the red tipped flashlight he had been using in 403:
Just more fun flashlight IDs lol.
EDIT: Did some looking at around at more shots. Looks like on certain close-ups they do actually use the unmodified original version of the Durabeam. Check out these shots of Lucas from Season 4, Episode 9:
You can clearly see the more aged interior and the bulb. Plus, in that extreme close-up you can see the ridges where the head meets the handle match the original, vs the extended head on the modified ones.
In this shot of Erica straight on though, it's the custom modified head. Look at the huge lens inside, plus the clean white interior:
Okay I think I am done now.