100% illumination means a full moon and no clouds flying under NVG's. 0% illumination was a moonless night with total cloud cover while flying NVG's. Back when we were flying with the PVS5's 0% was an a$$ pucker night.

kwg

For liberals and anarchists, power and control is opium, selling envy is the fastest and easiest way to get it. TRR. American conservative. Never trust a white liberal. Malcom X Current NRA member.