OOC Discution
Good idea with the ball and it would work with Low-Light Google (or maybe not if your mirror vision is plugged directly into the brain, but I am not picky, you are superheroes). You didn't thing to attach a flashlight with the ball?
I made research, red light vanish after 30m, yellow after 100m, green after 250m and blue/violet after 500m. To simplify a little, everything is clear down to 50m, between 50m-300m you have low-light condition (who can be offset by the low-light vision sens), after 500m you have only darkness (who can be offset by dark vision.