Unity 5 | Flickering Light Script

using System;
using System.Collections;
using UnityEngine;
using Random = UnityEngine.Random;

	[RequireComponent(typeof (Light))]
	public class Flickeringlight : MonoBehaviour {

		public float MinLightIntensity = 0.6F;
		public float MaxLightIntensity = 1.0F;

		public float AccelerateTime = 0.15f;

		private float _targetIntensity = 1.0f;
		private float _lastIntensity = 1.0f;

		private float _timePassed = 0.0f;

		private Light _lt;
		private const double Tolerance = 0.0001;

		private v o i d Start() {
			_lt = GetComponent<Light>();
			_lastIntensity = _lt.intensity;
			FixedUpdate();
		}

		private v o i d FixedUpdate() {
			_timePassed += Time.deltaTime;
			_lt.intensity = Mathf.Lerp(_lastIntensity, _targetIntensity, _timePassed/AccelerateTime);
			if (Math.Abs(_lt.intensity - _targetIntensity) < Tolerance) {
				_lastIntensity = _lt.intensity;
				_targetIntensity = Random.Range(MinLightIntensity, MaxLightIntensity);
				_timePassed = 0.0f;
			}
		}
}