how long did you give it?? i swore to god my first hps was busted but it finally lit after approx 8-12 minutes, seemed like eternity to me , just leave that bitch plugged in for like 15 min
The bulbs I got when I ordered my ballast were JUNK man, I had them send me 2 new ones and those were JUNK to lol I ended up going to Lowes and bought some Sylvina's for $42 each. So far got 5 months out of them, but I always buy new bulbs ever 6 months because they do loose spectrum.