Instantiate prefab and passing parameter

Questions & Answers
1

There is a way to instantiate a prefab and acess a component from it ?

I want to instantiate a bullet, and then i say to the bullet for e.g: “Hey, your power is this and your range is this”.

Hope you understand my question

2

Sure, do this:

var obj = (GameObject)Instantiate(...);
obj.GetComponent<WhatComponent>().DoSomething();

Replace DoSomething with whatever you want to do, or store the result of GetComponent in a variable if you need to do more than one thing.