Lightforge Helm

Part of the Paladin-aimed Lightforge Armor, a Dungeon Set 1 gear set.

Source
This item drops from Darkmaster Gandling in Scholomance.

Lightforge Helm as a quest objective
This item is an objective for the quest.

Please see the Dungeon Set 2 page for a walkthrough on upgrading your Set 1 pieces to Set 2.