Excerpt from "'Should I Buy It?' – Hard Light & Other Exotics"
ACD/0 Feedback Fence is one of three pairs of Titan Gauntlets, with the Defender's Ruin Wings. Its main talent, Wrath Conductors, pulses a strong blast of Arc damage when you take melee damage. (It has a cooldown of a few seconds.) It also has good melee synergy, boasting two additional melee perks.
ACD/0 Feedback Fence are a niche piece of armor, much like Hunters' they'd shine most (Abyss in Crota), the cooldown hinders its potential value. Remember: It only triggers after you've taken the damage, so it's really just meant to stagger nearby enemies while you hide & recharge.
Tip: Combine with the Striker's Discharge talent for a double AOE combination!