the best way to get a good yield is to read as much as you can and then buy good quality equipment. If you have two strip lights, bag seed, tap water and soil from your garden your going to get bog weed. Weed is expensive. Think how much you spend on green in 3/4 months and then see how much equipment u can get for the same cash. It will be worth it in long run. Oh and did i mention read books...