The city does not need the sun or the moon to shine on it, for the glory of God gives it light, and the Lamb is its lamp. (NIV)
And the city has no need of the sun nor of the moon to give light to it, for the splendor and radiance (glory) of God illuminate it, and the Lamb is its lamp. [Isa. 24:23; 60:1, 19.] (AMP)
And the city had no need of the sun, neither of the moon, to shine in it: for the glory of God did lighten it, and the Lamb is the light thereof. (KJV)