if your getting multiple lights for example hps and mh and cfls then a good idea would be to use the cfls(blue spectrum) during seedling stages then the mh during vegitative stage then replace the mh wit the hps for flowering that way they get full spectrums of light as in the changing seasons and the cfls can be used throughout the whole grow as side lighting later on in development..keep in mind mh for veg hps for flowering (blue/red spectrum) also best advice for first time grow i can give is be patient! especially when it comes to watering. best of luck