Veriann....are you sure you did not have the scotch before that reply?
Doctor.....I had read those, thanks
I believe that nipple orientation is probably not the cause of the yellow color issue that I have had. I probably should have used bracket position in describing the orientation just to get away from the nipple thing. I feel that the author of the articles needs to test more bulbs perhaps. The statement "Under certain sets of circumstances it might be possible for some
metal halide bulbs to appear yellow." seems a little weak to me. I would say that it "
is possible". I have one. I do not think I could recreate the color shift to yellow either, although, I was able twice to get it back to white by reorienting it.