Neon UnderBody

Ok, I got the transformer to a ground, but the other wire, do I just put it to my Battery?? that is how I have it, some1 told me to put it onto a fuse on my car???

I’m a little confused ? Are you talking about the main power wire ? The one that goes to the toggle ? If so i would run it right off the battery to a in line fuse to the toggle then to the lights. It’s the safest way to do it.

is the fuse that goes off the transformer good enough?