[FRIAM] Why do flashlights have a black case?

[David Eric Smith]

https://www.amazon.com/Resistant-Rubber-Coated-Bright-Flashlight/dp/B003G4MUTQ

> On Nov 21, 2021, at 3:12 PM, Gillian Densmore <gil.densmore at gmail.com> wrote:
> 
> The other day I needed to use my flashlight. But I had misplaced it. It me thinking: why didn't they glow in the dark? I can probably paint one I was given in something glow in the dark.
> But it just seems like one of the things that'd make more sense if it did without needing a spray paint.
> 
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