i aggree with buk an puff but buk makes more sense get a conversion kit an use both mh an hps mh for veg hps for flower or if u get another ballest and reflector an have enough space use both for double the fun cfls come in all different wave spectrums red 2700k an blu 5000k and up there good for first grows such as myself budget grows such as myself and lazy growers who dont want to worry about heat and smell issues such as myself.. good luck