Check one out. I got 60 400W Metal Halide ballasts from an electrical contractor. No glue - There are two transformers and a capacitor in a hard substance that is easily broken up. Transformers ends are very easily opened. The metal holding the copper windings is easily opened, too (hit "joint" with a hammer). Each transformer yielded 3 1/2 pounds of copper (two to a ballast).
Bookmarks