Hey guys. Got some questions on Fluorescent and HPS lighting. From what I understand I can just get some CFL's in the right range and then I will be good to go for the Vegetative period. I'm pretty confident with this but I'm open to suggestions if you have any. For the HPS lights I'm honest just confused. What all do I need? I need some kind of special light socket that plugs into the normal wall, that the bulb screws into, the bulb itself (what kind of wattage for a 4'x4' box?). and is that it? Is it worth it to look into reflective screens? Do I need anything else? Any help would be appreciated.