The size of the area light. Editor only.

	light.areaSize = Vector2(5, 2);

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Example() {
        light.areaSize = new Vector2(5, 2);
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Example() as void:
		light.areaSize = Vector2(5, 2)