Inside this element there are parameters for illuminate the text

Field	Valid values	Description
type	see topic below	Defines the type of illumination that will be applied to the text.
strength	between 0.000 and 1.000	The strength of the illumination. Values above 0.500 will create a glow.
blinkType	see topic below	Defines if it will and how it will blink.
requiredFlags	integer	Flags required for turn on the light, if type is set to FLAGS
forbiddenFlags	integer	Flags that will forces the light goes off, if type is set to FLAGS

Value	Description
OPAQUE	Will not have light effect (default)
DAYNIGHT	Will follow the day/night cycle, only turning lights on at night
FLAGS	Will use the requiredFlags and forbiddenFlags to check if the light shall be on
BRIGHT	Lights always on

Value	Description
None	No blinking
Blink_050_050	Blinks each half second
MildFade_0125_0125	Mild fade the light
MediumFade_500_500	Medium fade the light
StrongBlaze_0125_0125	Provides neon-like effect
StrongFade_250_250	Strongly fade the light
Blink_025_025	Blinks each quarter second
Custom	Will use the customBlinkParams element value to calculate the fade formula. See above.

Used if blinkType is set to Custom. There are 4 attributes: w x y z. The formula used by the game to calculate the blink isn't clear by now.