First off Neto, how many plants are you planning on putting in the tent? I don't know how many seeds you bought, but if this is your first time, then please read a lot on how to germinate seeds, as that is where so many newbies make mistakes and just kill a bunch of expensive seeds, happens to almost everyone starting out.
That's one reason I encourage beginners to start with an inexpensive and easy strain so you won't feel too bad if you don't have success right away. Also it's a good idea to start just half your seeds, see if your technique works then either make adjustments or just repeat for success (iow, don't put all your eggs in one basket). I have a fairly foolproof method, but it's detailed so just pm me if you want and I'll shoot you a link.
Once you figure how many plants you want, or end up with (best laid plans of mice and men etc, etc ;?) you can figure out how you want to arrange the lights. As I understand it, they gave you one more of the 320W led panels and 2 CFL's (what wattage?). Also the number of plants versus the size of your tent is to some extent going to dictate how long you're going to veg your plants - for example fewer plants = more space = longer veg time, and vice versa. A lot also depends on the strain - largely indica usually means shorter and bushier, more sativa means taller, lankier and more stretch when you flip to flower.
Plus don't know what system are you going with? Straight soil, some form of hydroponics? Imo, the easiest for beginners is actually a form of hydro called Hempy Buckets - it's a DTW or Drain To Waste, which means you don't need any fancy reservoir with pumps, no chillers, no worries about keeping pH balanced in the res, and if something goes wrong in your res then all the plants can be affected even killed.
You basically start with a bucket that has a hole drilled about an inch or two from the bottom, then fill it with a medium that consists of coco coir and perlite in a 60/40 mix although that can vary 10% either way. You could add a small percent of organic soil but it's not needed and imo it's better to start simple with a well-proven method that is really hard to screw up, lol. Then you just mix up your nutes and then water your hempy buckets until about 5%-10% of the solution runs out the hole. Just have to figure out how often your particular plant/bucket needs to be watered and it's just that easy.
Straight soil is good if you know what you're doing, having some previous gardening experience helps, but if you make a mistake like feeding too high a nute concentration or too often, these conditions can be much harder to correct. There's also some other issues you can read about, but these are just suggestions in case you haven't already decided which way to go.
Btw. sorry for such a long response, bad habit, lol, but as you can see there's lots of information that's needed in order to make decisions and to give good, accurate advice. That's why, if you have the time, I encourage you to start a grow log in that section of RIU. That way you can put all this information out there and others can give you advice (some good, some bad, you'll have to figure that out on your own) and it'll help you get through the rough parts and you can also check fellow RIU'ers grow logs as well. In fact you can get a lot of ideas from reading about the experiences others are having, some you'll be able to relate too and help keep you from making the same mistakes, and also lots of good ideas you can borrow. If you haven't fallen asleep reading this, lol, good luck and good growing ;?)
