It cannott be stressed enough how important proper lighting is. You should evaluate your grow area and answer A few simple questions.
- How big is the space (In sq ft.)
For every square foot, you want to have at least 50 Watts of light.
- Do I want yeild or quality
While Metal Halide is considered better for vegitive grow, you will want to consider using A Hight pressure sodium lamp for Blooming/Flowering.
- how much money do I have
Metal Halide is A little cheaper, but you will not see as much yeild. MH has A great spectrum for vegitave growth and an O.K. spectrum for flowering.
High Pressure Sodium is the more exspensive, but fairs well for vegitive growth and is excellent at flowering.