Bewlow is a list of what the different enhancement of the Defender Titan Subclass do to your abilities. Original credit.

Force Barrier Ability Talent Durations Destiny

• By default the Force Barrier lasts for 15 seconds.
• With the No Back Up Plans Talent the duration of the Force Barrier is 20 seconds.
• With the Relentless Talent the duration of the Force Barrier is 20 seconds.
• With both the No Back Up Plans and Relentless Talents the duration of the Force Barrier is 25 seconds.

 Ward of Dawn Super Ability Durations Destiny

• By default the Ward of Dawn Super lasts 30 seconds.
• With the Bastion Talents the Ward of Dawn Super lasts for 45 seconds.

Ward of Dawn Abilities Destiny

• Weapons of Light lasts for 10 seconds outside the Ward of Dawn Super bubble. It does 25% extra damage which is increased to 35% with the Illumination Talent.
• Blessing of Light lasts for 10 seconds outside the Ward of Dawn Super bubble.