Well years ago I know they were real, because the company where I work had their products on all of the computers.
The funny thing was they offered insurance against lighting protection if you bought their protectors. One of the building got wacked and IT FRIED EVERYTHING.
It happen on a weekend and the Monday when we went in the protector was just a charred black box and the computer was junk. But they replaced everything good as new. I think that is why they went in to BK because of there self insurance they provided. HUM