My suggestion would be start with a mh bulb to keep the nodes tight when they start to flower switch to hps, and don't spend a ton of money on an's lineup you can achieve much better results with house and garden use just a/b for veg at about 5 ml per gal, for flower use it at 10 ml per gal at 3-4 weeks flower ad bud xl and at 6-7 weeks flower ad shooting powder your buds will be rock hard. I run this nute lineup and with only a few plants for personnel smoke $50-60 wort of nutes will last almost 3 grows