LED Grow: 1st grow, 56W max, Northern Lights

[maspino1]

ya i was really skeptical about the led's and from what i've seen so far they're really not that great
and stealth already told me these panels aren't any use at all but since i've jumped on the led
bandwagon i might as well finish it to the end
besides, it's great to look forward to after a 12 hour shift
and definitely going with t5 ho next time, i already found some on yahoo

[SnSstealth]

eh..........i will agree with you to an extent paht head...dont know if you have seen our plants...but they are growing pretty bad ass....the procyons were hella expensive, give ya that......but our whole room is getting almost 5k lumens at the soil level...and the Nm are almost dead on....while they do need some work...i have a feeling our 300w system will do close to avg for the 20 plants we have...IMHO
:smokebong:
whiskeytango

[Paht_Hed]

Ok so pic one is your plant out how many weeks?
Pic two is my first plant from bagseed (turned out to be male) at 3 weeks (consider it to be 20 days) from when I put the seed in the paper towel. Using 260 watts of cfls.
Just as something to compare. I am not sure what week you are in so a lil feedback would be appreciated.

The procyon using 635nm and 470nm leds. As I stated you need 425nm and 660nm for optimal growth. You may be getting 5,000 lumens at the soil level but your plant can only use so much of those lumens. 635nm peaks at 68% where as 660nm peaks at 95%. 470nm at 78% 425nm at 100% usage. This means you get an average of 97.5% lumen usage with 425,660nm leds and a much lower 73% average lumen usage with the Procyon. These numbers will vary (in fact the average should decline) since the Procyon has a larger number of red leds than blue. Which brings me to another issue. A near equal number of leds would be the best for a single LED grow light. A larger number of red LED like the procyon has should be used for flowering and in that aspect I think you will see some benefits from your LED light. I predict average sized buds with high resin counts, partially due to the stress caused from an improper spectrum. You will most likely see a lot of stretching during veg though.

And again I applaud you two for taking the innitiative to propagate with LEDs.

Just my :twocents:

Now I must be getting back to my bowl covered in kief :jointsmile:

[SnSstealth]

ill agree with ya in that we are still off on ideal...we will be supplementing lights next grow depending on the outcome...since sales are not our primary goal...more potent @ less yeild is quite key for me...everything i have read, they all share the fact that resin output does increase with these and the UFO... adding some other colors to our grow next time, i think will be a serious deal...if we are this close to good now.........mmmm
and as for the comparison....they are pretty close in age....jack herer tends to be a slow starter, and for some reason, we got WAY more lateral growth than vert growth, so we raised the lights back up to 18in....this first run is ALL experiment....so next time we can truely see LEDs potential.....who knows, marsipno may help us in getting info on on these...thanks for your imput paht...feel free to stop in my thread sometime
marspino....dont give up on the LEDs man!!!! if making your own panels seems better for ya, talk to me, physicsnole and opie yutts...those 2 guys know ALOT of the scientific aspect of LEDs as well.......
:smokebong:
whiskeytango

[maspino1]

wow, ya i have been noticed an increase in internode length, just recently, it's stretching
for no reason :S
thanks for all the encouragement stealth, don't worry i'll stick it out with you guys since
i'm all up for results as well
and i think after this grow if results are insatisfactory then im gonna go with t5 like paht hed
mentioned

[maspino1]

UPDATE

this is how the LEDs are set up inside the box now, at the full 56W and hopefully
the angled positions of the upper panels blends into both frequencies hitting the plants'
leaves and increasing growth sans stretch

plant pic updates on wednesday night

[SnSstealth]

much better....fingers crossed for ya!!!!
:smokebong:
whiskeytango

[maspino1]

i forgot to ask:
my box isn't a sealed off container. the seams of the walls are held together with nails
top, middle and bottom and is sealed with breathable fabric medical tape and the
panels create like a few mm of space on each side so would a fan still be necessary?
even as well with the yeast and sugar concoction, it seeps out of the box and gives me
headaches.
let me hear your tips and suggestions, thanks

[SnSstealth]

yeah man, regardless of temp, you need circulating air around the girls at all times...IMO
:somkebong:
whiskeytango

[maspino1]

ok, so a tiny update:

my cotyledons are dying now so that must mean the plant is on its way
it's either that or nute burn but the latter seems unlikely since my other leaves are doing
fine
i'll post a pic tonight if i can, my camera's being a prima cameradonna for no fucking reason