can someone plz tell me how to add sounds effects for my flashlight on unity5

I already have flashlight and I can turn it on and off so someone can plz tell me how to add sound effects
here is my script

#pragma strict
var flashlight : Light;

function Start () {

flashlight = GetComponent(“Light”);

}

function Update () {

if (Input.GetKeyDown (KeyCode.F)) {
if (flashlight.enabled) {
flashlight.enabled = false;
}
else {
flashlight.enabled = true;

}
}
}

var flashlight : Light;

var source : AudioSource; // make an audio source component and put it on your camera. 
var clip : AudioClip; // put the sound you want it to make here.
     
     function Start () {
     
      flashlight = GetComponent("Light");
     
     }
     
     function Update () {
     
        if (Input.GetKeyDown (KeyCode.F)) {
         if (flashlight.enabled) {
         flashlight.enabled = false;
          // put the sound code shown later here if you want it to make a sound when turning off.
         }
      else {
      flashlight.enabled = true;
      source.PlayOneShot(clip) // this will play the sound file "clip" through the "source".
     }
     }
     }