First serious home grow - DIY 90 (-126)x 1w diodes Bagseed experiment

Long time lurker coming out. First of all, thank you very much for all the information presented here. It's been a pleasant and productive read. I owe everything I know and all the ideas written here to other people on this and other growing forums.
After some research, I decided to try a DIY project for a led lamp to use in my home grow. I don't want to sell anything, altough I'm quite the heavy user (Actually hoping to diminish my consumption by growing my own) so yeld is a factor, but not the main factor.


The principles of this project are:
Low cost (Energy consumption and materials)
Silent (Absolutely no coolers, only passive heat dissipation)
Low difficulty (I'm not that good with a soldering iron)
Reliable on flowering (Where most of the difficulty is, as I see it.)
Proper spacing (Might be me, but I find most brand-name led lamps stack the diodes too close together. Maybe this is not the best way. I'm thinking about 2 inches apart should be fine.)




I've settled with 1w chinese ebay leds because of the cost, so I'm basically looking at this:


All seeds are bagseed from weed acquired via different sources all across my country (Brazil). I'll number each seed and go all the way through seedlings. Maybe I'll spare the best male and the best female to have some seeds to continue experimenting with. I thought it could be fun to have a seedling race and document the whole life of each of the plants in a SOG-like system. Maybe we could bet on them like jockeys, and such. But that's obviously just a stoner thought. Right now I have about 30 viable seeds but I hope to try to germinate 50 of them, expecting about 25 to actually sprout (Bagseed, after all) and 12-18 females. Maybe this is a bit too optimistic, but I'll aim for that. The grow area is about 4 feet by 2.5 feet, under a kitchen table about 4,5 feet high. It has a metal structure underneath it that will act as a nice support for the lamp, so I can control the light height easily.


(Materials not acquired yet)
-Large aluminum tray to house the leds (Way cheaper than a reflector)
-Kapton tape and copper tape (as an alternative to wiring)
-Shower box rails cemented to the tray using artic silver (the rails are made of aluminum and much cheaper than heat dissipators)


(Already bought)
-90x 1w Leds from Ebay, brand unknown. (50 Red, 18 Deep Red, 4 White, 9 Royal Blue, 9 Blue.)All leds have a 120 degree viewing angle, except for the Deep Red ones which have a 140 degree angle.
- 5x Waterproof Drivers (Said to power 18 leds each)


I'm still waiting for the items to be delivered so this might be an early start for a journal. But I'll try, heh.
I know 5 drivers aren't the best option, but I didn't knew then. One welcome benefit is the ease to simply turn part of the red lights off during veg by shutting down one or two drivers (in order to save power during veg)


Now, the questions:
Do you think 90w is enough? I'm planning on adding more leds (Maybe 36 extra whites)right before flowering but this time I might acquire a proper driver instead of two extra drivers, p.ex.
What is the most viable solution, in your opinion?
The medium is something I'm unsure about: perlite hempy buckets, coco or soil? In any case, do you think a wick system (sub-irrigation) would work?
I'm trying to reutilize plastic (PET) soda bottles (2l and 2,5l) as pots and whatever else possible so any suggestions are very welcome.
Last but not least, am I missing something? Do you think this could work?

Thank you for reading, any comments will be much appreciated. I'm about to take pictures once I have most of the materials ready. It's been hard to find copper tape here and the leds are two weeks away from being delivered.


Peace!
Jaya!

not to make you all mad but the important thing about your LED's is spectrum not color a bulb cover will not change spectrum

I forgot to list the wavelengths, sorry. They're listed by the seller as:

Royal blue diodes: 445nm~450nm
Blue diodes: 460~470nm
Deep red diodes: 660~665nm
Red diodes: 620~630nm
White diodes: 5500k~6000k

Thank you, not mad at all; I believe all covers are clear so the color must be the actual wavelength produced. Didn't notice it, though. I'll be sure to check.

I'd say you could maybe grow one plant with 90w. Thats assuming those lights are remotely close to useful wavelengths. You could cover maybe 1 square foot with that. You could SoG with a couple small clones maybe. If you don't mind me asking, how much do you expect this to cost? You could get a 156w cfl grow going for about $40-$50, even less if you keep a collection of good components off of broken things. I've never grown with LED's (I use T5's myself.), but I can tell you that 2" between diodes is going to give you shit for light intensity. You are dispersing very little light over ALOT of area with 1w diodes and huge angles, spacing them is only going to compound the issue. Also, thats way too much red for veg. You want predominantly blue for veg, primarily red for flower. Those wavelengths aren't the best, but they aren't the worst. You want a little closer to 420-440nm for blue. For red, its around the 630-660 area, mostly on the higher end of it. Google a PAR chart and match to the peaks.

This has already costed me around 150 dollars. I'm rethinking the spacing, probably it will be an easier task once I have the diodes and can power them.
The wavelengths are posted above. As I said, The idea is to turn off 1-2 drivers of red lights during veg, and adding 36 extra leds on the way to flowering. Thus the total number of diodes will be 126, and I'm guessing it should draw around 110w.
Thank you for you comment! Perhaps I'm expecting too much from these lights.

Thanks for pointing out the PAR chart, I had checked it but the 420nm leds ran at 4 dollars a piece. Same deal regarding UV and IR leds, this is why I decided having a small quantity of white leds (That will put out considerable light in those wavelengths). They are almost 20 times cheaper and have better efficiency (Even though light intensity is not as important as the correct spectra, in this case). It's a cheap way to supply light in a broader spectrum, covering some of the plant's needs.
From what I understand, the cooler the diodes are the less energy they spend to output a fixed amount of light. So I expect the massive heat sinks, relatively larger gaps between diodes (each one mounted on a star) and copper tape wiring to work in that direction, giving me more light. Maybe I could use a simple air flow system in the grow (intake and exhaust made with pc case coolers) that forces an air current through the lamp, doubling as an active cooling method. I believe the forward current on the red and deep red diodes is smaller, leaving some power available to run two 350mA coolers.

I know these are not the best solutions, but what do you think about it? Any other suggestions? I'm doing this on a very strict budget, so I'm sorry if this sounds too stupid. Feedback is always much appreciated.
Thanks!

http://www.oznium.com/led is a good place to supplement your wave length. I switched to LED's the summer and Im not going back to HPS. Also LED's really suck for veg I still have a MH for veg

Thanks for the link, my friend. However, the LEDs directly on the link are not the ones I'm using. I'm using powerLEDs that run @350mA and output several dozen times the light of a single 3mm, 5mm or even 10mm LED.

The ones I ordered would be more like this one:

http://www.oznium.com/1w-led

And they seem to have only one product, with the wavelength close to the Blue ones I ordered.
Am I missing something?
Thank you again for you patience and for being helpful.
Cheers!
Jaya!