Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <PsychoticMinds1-at-aol-dot-com> Hi all I have a transformer from a profesional car battery transformer the transformer is capable of running 100 amps at around 14 volts lv side and 120 hv side Would this make a good ballast? the thing must weigh 50 pounds and is about a foot squared.