It’s not a converter. It’s a getter but the default naming conventions here are not the best that’s why this thing can be somewhat confusing:
The Child Actor on the far left is a Component, it automatically spawns an actor of Child Actor Class (here ActorA) and controls its lifespan. If the component is destroyed so is that ActorA. And that Child Class can be replaced, run time, too.
Imagine creating a highly customizable robot that can have various attachments. Instead of manually stitching actors together, you can do it with Child Actor Components instead. And the player will decide what Leg, Arm, Head, Weapon actor will sit in that Child Actor Component slot.
In this case, the bottom Child Actor is the Component that holds onto the 3d Text Actor, and the top (unfortunately named) Child Actor node is the actual 3d Text Actor.
It’s probably not the worst idea to rename the lot:
Apologies for the confusion.