Radiance

Radiance is a suffix that can appear on Magic and Rare Items. It provides a moderate bonus to both Light Radius and Attack Rating.

It doesn't start spawning on items until Item Level 15.

The base Light Radius is 13. The Max Light Radius you can have is 18 so anything more than net +5 to Light Radius will not matter.

Stats
Can appear on: Magic Items, Rare Items

Is available on: Amulets, Bows, Crossbows, Helms, Rings, Scepters, Staves, Wands