noun
radiance
RAY-dee-uns/ˈreɪdiəns/
The brightness of light emitted from a source.
The sun's radiance lights the cloud edges as golden rays break through.

Etymology
From “beam, shine,” radiance names brightness spreading in rays, later also the glow of beauty or joy. Its immediate source may be radiant or the Latin noun radiantia, “brightness.”
In context
light shining with the radiance of Christ's glory that's what happens to the people of God
More examples
- The candles fill the room with a warm radiance.
- We shield our eyes from the radiance of the furnace.
- A dimmer switch softens the radiance of the chandelier.