system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 why do military vehicles use red lights to illuminate the inside instead of just normal white light?

I just noticed it watching a war movie. I also noticed it in cop cars while watching cops.
gpt
Red light does not affect your night vision *as much*, so you could quickly shift from red light to darkness and your eyes would need far less time to adjust, whereas going from white light to darkness requires a while for your eyes to adjust.