If money isn't too big a issue you could even get a dual ballast and have both lights run off the dual ballast and use the MH for veg and the HPS for flower!
Italiano715 Reviewed by Italiano715 on . help me out about philips bulbs Hello guys, i m very starter to grow these babies. i read many things in the forum but i'm really confused about choosing the right bulbs, cuz i cant find everything that i look them to buy. i asked many electric shop to buy bulbs which i saw them on some suggestions but i cant find. Anyway i found these bulbs finally but i wanted to be sure if they r correct bulbs for my purpose. i'm gonna buy Philips MASTER HPI-T Plus 400 Watt E40 SLV 4500k for vegetation period (as MH) and Philips Rating: 5