Side mounting or lighting advice for GoProhero5

Hi All

Trying to make more videos but having issues with lighting just not getting enough out of my Nora 4 in bigger cave passage or areas with darker rock.

My initial thought has been to get some compact site lights to help illuminate larger passage. Also to get some side mount lights on my helmet to give the lighting some boost for POV action.

My direct question for whomever is interested are as such:
What side mount lights provide a good flood?
Are there any setting I should change on the gopro to help with darker enviroments?
 
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