First a little bit about the prerequisite Channel Positive Energy Feat. This is a feat from the Kalamar Player's Guide and it allows those who can turn undead to do something different in place of turning. The exact difference depends on the deity but some examples include: Opening any doors and breaking any bonds within 30', causing disease in an area, resisting elements and more.
Divine Armor
Prerequisite: Ability to cast divine spells. Channel Positive Energy Feat. Ability to Turn Undead.
Benefit: By using 1 of your turning undead attempts per day you may increase your armor class by +2 for a number of rounds equal to your Chr Modifier with a minimum of 1. This +2 is a deflection bonus. Using this feat is a standard action.
Divine Armor
Prerequisite: Ability to cast divine spells. Channel Positive Energy Feat. Ability to Turn Undead.
Benefit: By using 1 of your turning undead attempts per day you may increase your armor class by +2 for a number of rounds equal to your Chr Modifier with a minimum of 1. This +2 is a deflection bonus. Using this feat is a standard action.