Install this kit on the first run of fencing, positioned 30 meters away from the energiser's earth system. Lightning that comes in contact with the insulated live wire travels back toward the energiser and slows down due to the choke spring, allowing the spike to dissipate through the arrestor to earth. By doing so, you can effectively protect your livestock, wallet, and your electric fence energiser from damage caused by lightning surges with the easy-to-use but highly effective Thunderbird Electric Fence Lightning Protector Kit.