I was just mounthing my 150watt and 250watt HPS ballists into a metal electronics project box when i was thinking... will two balists this close get too hot? and can a ballist be touching the metal case with out risk of electricution or worse yet hurting the lights! lol anyways also can i glue to the large heavy metal part? dose it have current in it or is it just a heat sink for the other part of the ballist. ohh well help with this is very apriciated thanks.