The word(s) "light" appears 129 time(s) in 117 verse(s) in Quran in Mohsin Khan translation.

(71) He it is Who sends Salat (His blessings) on you, and His angels too (ask Allah to bless and forgive you), that He may bring you out from darkness (of disbelief and polytheism) into light (of Belief and Islamic Monotheism). And He is Ever Most Merciful to the believers.

(72) And as one who invites to Allah [Islamic Monotheism, i.e. to worship none but Allah (Alone)] by His Leave, and as a lamp spreading light (through your instructions from the Qur'an and the Sunnah - the legal ways of the Prophet صلى الله عليه وسلم ).

(73) Nor are (alike) darkness (disbelief) and light (Belief in Islamic Monotheism).

(74) And if they belie you, those before them also belied. Their Messengers came to them with clear signs, and with the Scriptures, and the book giving light.

(75) But those who disbelieve (in the Oneness of Allah - Islamic Monotheism), for them will be the Fire of Hell. Neither will it have a complete killing effect on them so that they die, nor shall its torment be lightened for them. Thus do We requite every disbeliever!

(76) And they swore by Allah their most binding oath that if a warner came to them, they would be more guided than any of the nations (before them); yet when a warner (Muhammad صلى الله عليه وسلم) came to them, it increased in them nothing but flight (from the truth)

(77) (They took to flight because of their) arrogance in the land and their plotting of evil. But the evil plot encompasses only him who makes it. Then, can they expect anything (else) but the Sunnah (way of dealing) of the peoples of old? So no change will you find in Allah's Sunnah (way of dealing), and no turning off will you find in Allah's Sunnah (way of dealing).

(78) In the Gardens of delight (Paradise),

(79) Is he whose breast Allah has opened to Islam, so that he is in light from His Lord (as he who is a non-Muslim)? So woe to those whose hearts are hardened against remembrance of Allah! They are in plain error!

(80) And the earth will shine with the light of its Lord (Allah, when He will come to judge among men): and the Book will be placed (open); and the Prophets and the witnesses will be brought forward; and it will be judged between them with truth, and they will not be wronged.