I've had tarpon and other nocturnal hunting fish use my dive lights to scout their prey.
This is a known thing, it's rather surprising you are unaware of it.
Here's some remedial reading for you. It's just one link of dozens that come up when you search on "predatory fish using scuba divers lights to hunt prey".
Night diving is an adventure that very few life adventures surpass. It is a unique experience and very rarely the same experience, twice. At night, you have the opportunity to see critters you wouldn’t normally see in the daytime. Some fish and underwater creatures go to bed while the night...
divedoggie.com
These fish hunt in our lights and swim along with you, nearly the size of you, and don’t seem to mind the nuisance you offer as long as your light provides their next meal