Paladin · Holy · tier 2 · from level 15

Healing Light

+194 Holy Light

3/3 · level 60 · per cast · and 3 more

Healing Light 123

Rank 3/3

Increases the amount healed by your Holy Light, Flash of Light, and Holy Shock spells by 12%.

Holy Light +12.0% +194 Holy Shock +12.0% +41.0 Holy Shock healing +12.0% +39.3 Flash of Light +12.0% +37.8

Averages, counting crits and misses, for a level 60 Paladin with a typical weapon and no other gear or buffs, against a target your level. Worked out from the game's own data, the same way as the Foresight addon.