hey t5ers,does anyone know what color spectrum 6k giesemanns run at?is it more yellow or white?i ordered some middays without paying attention that they were 6k.i have always run 10k bulbs.what difference can i expect.setup is 3 act,3 10k now and really like the color of it.if these 6k are more yellow when they get here,can anyone recommend a different bulb.36" 39w.would like to keep my sps from losing color.thanks,Reggie