Gauntlet of Lightning:

This gauntlet allows its wearer to cast lightning bolt 3 times per day. Each bolt deals 5d6 points of electricity damage, or half if a Reflex save (DC 14) succeeds. Using the gauntlet is an attack action and does not provoke attacks of opportunity.
Type: Wondrous Item (magic); Caster Level: 5th; Purchase DC: 32; Weight: 1 lb.