How do i put lights with muzzleflash?

Guys I am making a FPS game in Unity 3D and I cant get the light to work with the muzzle flash. The muzzle flash Works fine, but the lights don't. HERE IS THE SCRIPT IM USING:

 #pragma strict
 
 var muzzleFlash : ParticleEmitter;
 
 var lightOne : GameObject;
 
 var lightTwo : GameObject;
 
 function Start () {
 
 Screen.showCursor = false;
 
 muzzleFlash.emit = false;
 
 lightOne.SetActiveRecursively(false);
 
 lightTwo.SetActiveRecursively(false);
 }
 
 function Update () {
 
   if(Input.GetButtonDown("Fire1"))
 
   muzzleFlash.emit = true;
 
   lightOne.SetActiveRecursively(true);
 
   lightTwo.SetActiveRecursively(true);
  
   
   if(Input.GetButtonUp("Fire1"))
 
   muzzleFlash.emit = false;
 
   lightOne.SetActiveRecursively(false);
 
   lightTwo.SetActiveRecursively(false);
   
 }