The Armor of Light was powerful armor discovered in a locked room on the second level of the Temple of the Sun. It was the most powerful armor Connor discovered, it replaced his Full Suit of Armor. After obtaining the armor, the Voice gave him the precept of Light.
Behind the ScenesEdit
It is actually one of three items required to enter the inner sanctorum of the mask, however by the time you reach there you already have it. If you try to get to the door via cheats, the Archon will tell you you need the all three items including the armor..
The 'Armor of Light' is an allusion to the 'armor of light' mentioned in Romans: 13:12, and the Armor of God mentioned in Ephesians 6:10-18.