Al Asmaaul Husna - The most beautiful names
The Light, The One who guides.
He who provides divine light to the entire universe; to the faces, minds and hearts of His servants.
Allah is the Ultimate Light, a light not kindled from other lights. Light is the purest thing we know, but physical light has draw backs due to its nature. For example, physical light is dependent on some external source to itself; it is a passing phenomenon; it is dependent on space and time.
The perfect light of Allah is free from any such defects.
Ref: Quran - (24:35)