Make a game object attach to the main camera when the player touch it.

I'm new to Unity and i am making an "Exploration game".

I have maked a cube that looks that a flashlight and i attached the Spotlight to the cube.
What i want to do is make the spotlight attach to the players main camera when the player
touch the cube.

Thanks.

 

Instead of having to use the same model you can simply turn off the model in the level and turn on a model you have already attached to the camera. This allows you to have a different model for each situation, add animation to the action and not to mention it's just simpler to code and will have less bugs.