Crackling energy can cause Convulsions?

Straight - does Crackling Energy damage cause Convulsions passive effect?
We know nothing of how CE works - it just does damage to nearby enemies, period.

So, it’s not a skill, right? Then Convulsions won’t work, cause it says “Shock skills”? And it’s marked “Lucky hit”, meaning it works only for those LH. Does CE have LH % ? Do the increasing LH chance passives and affixes also apply to CE? We don’t know. Needs clarifications.

I see a pretty straightforward division from Blizzards on how you make up your builds: Either super cold with Froze and Barriers, or much fire with Burning and application of burn instantly, or melee shock with Stuns, or range shock with CE which gives mana and resets Lightning Spear cooldown as well as that of defensive skills. Still would like to have some Stuns when going full CE build :cry: