Stopping effect after certain amount of time?

I use

Code:

Effect.server.Run("assets/bundled/prefabs/fx/smoke_cover_full.prefab", flashPos, Vector3.zero, null, false);

but this certain effect runs pretty much forever... Is there any way I could stop/kill the effect after certain time?

 

How would I do that? Everything I tried doesn't work...

 

Does anyone know how to do this?

 

Attach it to a empty game object and destroy the game object when you're done