How to remove the GameObject having the Object

I create small halos on click, and I would like to destroy them after some time but somehow I can only destroy the object that I Instantiate - `Light` and this `GameObject` that I create also has `animation`, `halo`; etc.

How can I destroy the `GameObject` having the light component.

Code :

 public Light haloLight;    
 
 Object newHalo = Instantiate (haloLight, hit.point, transform.rotation);
 Destroy (newHalo, 1.5f);

With this I can only destroy the `Light` component

I have also tried

 GameObject newHalo = Instantiate (haloLight, hit.point, transform.rotation) as GameObject;            
 Destroy (newHalo, 1.5f);