|Values:||Floating point values: Any decimal number (clearer range should be added in Template:Values).|
Specifies the default rate at which ambient light is recalculated. When the ambient lighting level in a map is changed via trigger action #73, the game waits this many minutes1 between each step of lighting increase or decrease. This delay can be changed with action #72. The actual amount of lighting changed in each step is defined by .