Mass-effect – How does the damage bonus of Tactical Cloak work with automatic weapons

The Tactical Cloak power of the Infiltrator not only allows one to become invisible, but also provides a significant damage bonus:

I'm wondering now on which attacks the damage bonus when breaking cloak is applied. If I start firing with an assault rifle out of cloak does only the very first shot get a bonus, or do multiple shots benefit from it. How does it work with weapons that fire in bursts?

Depending on how this bonus exactly works it might be necessary to use high-damage/low rate of fire weapons to get a substantial benefit from this power. So I'm wondering if I need to change my weapon loadout to really take advantage of this power.