Fishing lights on the river

For those that have fishing lights set up on your freshwater river or creek docks, do you get a lot of bream and bass under them? Or mostly gar? Any issues with moccasins hanging out under lights?

We've got a place at the beach with light for specks and reds and kids spend hours fishing it but never put one out in freshwater. Just curious if it's worth it and hear your experiences.

Thanks!