Is there a term for someone who is obsessed with flashlights?

I can suggest some:

Afraid of the dark (Nyctophobic)

Boring

Anal retentive

Hoarder

Lonely

Let's see.  If he's into the light in general, I'd call him a photophile.

If he is specifically stuck on flashlights, a torchophile.

If he considers it his own personal spotlight, Donald Trump.