OK, so you're talking about buying two ballasts.

HPS 600 great for flower.

Get a 400 watt halide system- very few halide bulbs @ 600 watt, loads @ 400 and 1 K. 400 veg is perfect to feed 600 flower.

600 watt halides in N. America are rare and pricey- almost always a retrofit to a hps system. Go w/ the 400, pick up the Hortilux Blue halide- gonna be severa hundred dollars cheaper.
rhizome Reviewed by rhizome on . Just A Few Lighting Questions? This Post and all further posts made by this Ip and Username Are Purely science fiction and are in no way true any referance to real events are purely coincidental. Im Canadian and I was wondering if anyone had any experiance with Bustan - Toronto Hydroponics Grow Lights Nutrients Hydroponic Supplies Canada Im thinking of ordering from there. Ok I want to get: 1. 600w Galaxy Digital Ballast Hps & MH. 2. 600w OSRAM Plantastar HPS Bulb. 3. 600w SolarMax Veg/Conversion Bulb. 4. 18" Rating: 5