Try a 5500k or 6400k bulb for veg then switch over to the 2700k bulb once buds set in. Been impressed with the 150w 5500k veg bulb I got it as has it kept the plant / nodes nice and compact and the plant has easily filled out a 20ltr pot.
I've switched over now, to try get a little more stretch out of the plant, that 300w does kick out a fair amount of heat compared to the 150w, resulting in yet more stuff for me to be buying fan/filter and a proper grow tent as unable to mode the wardrobe it currently in.