I just bought a 400 watt ballast and they diddnt send the bulb, could i put a 70 watt HPS bulb i got from lowes in it? wouldit hurt the ballast or anyhitng?
ValuBrite 600 watt HPS Grow Light
WAs gonna get this lighting fixture b/c it was cheap and looks like it can do the job, with the bulb upgrade. what you think?