I received my 4 new Plusrite 20k 250w DE bulbs last night, my second set. I popped one in my right side fixture, it flashed, then about 30 seconds to one minute later it fired up and looks great. This leaves me with 3 bulbs for 2 remaining fixtures. I popped one in my left fixture, plugged it in with a kilawatt to see how many watts my "new" ballasts draw, and after 5 minutes, nothing. So I proceeded to try the remiaining 2 bulbs in the same fixture, and nothing. The kilawatt would start at 10 watts and then drop to 1 and 2 watts. Does this sound like a fixture/ ballast issue, or is it possible for all three bulbs to be crap. The fixture worked the day it was delivered and once installed in my canopy.