Acess first object in Generic list - C#

Hi, i have a code for shutting down light when button is pressed and lights are inside collider attached to player. But i cant find how to acess first object inside list ? How could I access random object in list ?

Thanks.

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class LightsOff : MonoBehaviour {
     
     private List<GameObject> ListOfLights = new List<GameObject> ();
     private GameObject LLLight;
 
 
 
         void OnTriggerEnter (Collider col){
 
         if (col.gameObject.tag == "Player") {
 
             if (gameObject.tag == "Light") {
 
                 ListOfLights.Add(LLLight);
 
                 LLLight = ListOfLights[0];
 
             }
 
         }
 
 
     }
 
 
     void OnTriggerExit (Collider col){
         
         if (col.gameObject.tag == "Player") {
             
             if (gameObject.tag == "Light") {
 
                 ListOfLights.Remove(LLLight);
                             
                 
             }        
         }    
         
     }
 
     
 
 void Update() {
 
         if (Input.GetKeyDown("k")) {
 
             ListOfLights[0].GetComponent<Light>().enabled = false;
 
         }
     }
 
 }