Emergency lighting

Emergency lighting is a lighting system that runs on backup power, used during battle or when the main power on a starship or installation is down. Human emergency lighting is typically red or yellow, with emergency exits often specifically highlighted with strobing red lights. An example of this is seen on the bridge of the cruiser, Pillar of Autumn during the Battle of Installation 04. Covenant starship emergency lighting is black light ultraviolet. Forerunners also incorporated emergency lighting in their installations; typically, Forerunner emergency lights are red.

List of appearances

 * Halo: Combat Evolved
 * Halo: The Flood
 * Halo: First Strike
 * Halo 2
 * Halo: Ghosts of Onyx
 * Halo 3
 * Halo Wars
 * Halo 3: ODST
 * Halo: Evolutions - Essential Tales of the Halo Universe
 * Midnight in the Heart of Midlothian
 * Dirt
 * The Mona Lisa
 * Halo: Fall of Reach
 * Halo: Glasslands
 * Halo: Combat Evolved Anniversary
 * Halo 4: Forward Unto Dawn
 * Halo 4
 * Halo 2: Anniversary
 * Halo 5: Guardians