Lightbringer

From Lost Mine of Phandelver, page 48.

Description
''Weapon (mace), uncommon. 4 lbs.''

This +1 mace was made for a cleric of Lathander, the god of dawn. The head of the mace is shaped like a sunburst and made of solid brass. Named Lightbringer, this weapon glows as bright as a torch when its wielder commands. While glowing, the mace deals an extra 1d6 radiant damage to undead creatures.