וְנֹ֙גַהּ֙ כָּא֣וֹר תִּֽהְיֶ֔ה קַרְנַ֥יִם מִיָּד֖וֹ ל֑וֹ וְשָׁ֖ם חֶבְי֥וֹן עֻזֹּֽה׃
And a brightness appeareth as the light; rays hath He at His side; and there is the hiding of His power.
Rashi on Habakkuk
like the light Like the special light of the seven days of Creation. So did Jonathan render it.
Rashi on Habakkuk
rays The expression of a light, which, when piercing and shining through a hole, appears like protruding horns. Similarly, (Ex. 34:29) “For the skin of his face shone.”