Mechanic

Light Stunned

Any Hit has a chance to Light Stun the target, interrupting their current action and preventing them from taking actions for a fraction of a second. The chance is based on the damage dealt, up to 100% base chance for Hits that deal 100% of the target's maximum Life. Chances lower than 15% are treated as 0%.
0.5.4d
Current data

Catalog version 0.5.4d

No direct 0.5 patch change is linked to this page. The displayed values are current for catalog version 0.5.4d.

What Light Stunned means

PoE2 definition

Any Hit has a chance to Light Stun the target, interrupting their current action and preventing them from taking actions for a fraction of a second. The chance is based on the damage dealt, up to 100% base chance for Hits that deal 100% of the target's maximum Life. Chances lower than 15% are treated as 0%.

Physical damage, and player (but not monster) Melee Damage, each have 50% more Light Stun chance. For players, these bonuses are multiplicative with each other.

Related mechanics

7 linked
01
Hits

Any damage that isn't damage over time is Hit damage.

02
Hitting

Any damage that isn't damage over time is Hit damage.

03
Hit

Any damage that isn't damage over time is Hit damage.

05
Physical

Physical damage is one of the five Damage Types. It is the most common and the only one reduced by Armour, rather than by a Resistance.

06
Physical Damage

Physical damage is one of the five Damage Types. It is the most common and the only one reduced by Armour, rather than by a Resistance.

07
Melee

Melee Attacks are those that directly hit with a melee Strike or a Slam, dealing Melee damage. Melee attacks usually scale from Weapon or Unarmed damage.