I'm considering buying a lightning protection unit for my electronics at home and would love some assistance in understanding how it all works. I live in an area where lightning strikes are very common and would like to buy/install something specifically for lightning protection.
I was looking at surge protectors that claim a joule rating of 1800+ joules. Now, in my limited understanding, a lightning strike packs much more punch and I need something more capable.
So here's my question - would a device with a rating of say 1800 joules be able to protect my electronics and if not, what do I need to look for in a surge protector?
How about surge protectors that claim they can absorb "20 000 Amps" on live, neutral and earth?