At first I thought it was a joke, it really lit up like a Christmas tree when I tested it next to the switch panel. I've also found it to light up near electrical objects (like a dashboard) but I tried it on an old army base, my car was off and all of a sudden it caught fire? Wow. I bought it last year, never done it. how did i see it Never in my life has a man said so much "Holy!" After stopping, has my radio decided to turn on?