Zareba Lightning Arrestor Kit - ALA-Z - Prevent Fence Energizer Lightning Damage - Contains Lightning Arrestor, Connector Clamp, 8-Point Ground Clamp, Mounting Screws

Best lightning arrestor that I have found. Heavy porcelain construction. This will last several lifetimes.

I suppose it will work, but be aware that you have to ground it more than 50 feet from the rest of your system. Not practicable with my small garden, so I returned it.

I use this for my short wave radio to prevent against lightning strikes seems to be working well as we've had a few lightning storms since I installed it seems to be good for the price and the only one I can find

After a few days of heavy rain with no lightning, the arrestor is clicking and shorting my system to ground. Line shock is really weak because of this.

As advertised, excellent product

needed for all electric fences.

Like someone else mentioned, if your system is over a certain joule rating, it just diverts the entire load to ground. On our 4.6 joule system, it did this. I had to adjust the ground wire a few milimetres away from the insulator post to stop it from grounding our system out. I hope that if lightning strikes the system, it will jump the gap and work as intended, but time will tell.

I have been using these things for decades. One blows occasionally and that’s to be expected. No loss of shock box so far so I’ll keep buying them for additional fencing. A strong enough strike will demolish one of these, as it would any other counter measure.Problem: Some shockers generate more power than this is designed for and will close its circuit upon plugging in the shocker, which shuts down the system instead of protecting it.Solution: Create a gap between the ground wire and the electrode terminal of the porcelain unit. Adjust the wire end closer to the terminal screw until spark jumps the gap, then open it up a bit from there. As long a no one comes by and decides to *fix* it for you, it will be fine. Also, don’t screw the unit hard down to a fence post or it will shatter. The base is not flat