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InvisibleDataM
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Re: Single Bagseed Indoor LED Gamble [Re: Integra21]
    #261875 - 08/08/09 08:29 PM (10 years, 2 months ago)

I found out along the way that UVB was pretty much essential in THC production in the trichomes...which is why most HID lighting works well with MJ, since they give off decent amounts of UV light along with regular vegetative light. So while LED's are amazing for vegetative and flowering growth...they do seem to require some form of UV light source.

I have seen UV LED lights for sale on the internets, but UVB LEDs are pretty expensive. I used 2 60W nominal watt (300W equivalent) CFLs, 3900 lumens a piece, in the 2700K color temp not only for supplemental lumens, but also for a decent amount of UV light. I will be installing 1 40W UVB tanning bulb in each grow tent from now on to keep those trichomes working...and will post details in my satori grow log here in the next week or so.

The particular fixture used in this grow was a 90W Boxer Grow Light from growlLED (type that into google and click the first link) With the 7:1:1 ratio of red:blue:orange LED spectrums. I purchased a 120W model from the same company for my second grow tent.

anyway...time for pics of my trimmed harvest slow drying...


hope you guys like it...cant wait to try this out...
peace,
agmotes165


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InvisibleInverted
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Re: Single Bagseed Indoor LED Gamble [Re: Data]
    #261968 - 08/08/09 11:38 PM (10 years, 2 months ago)

Gimme your best estimate on your yield!  You know my plant is pretty similar in size, maybe a couple more main tops but I am pretty much basing my yield off of yours, since our plants look very much alike.

You haven't taken a tester nug yet? I just cut one the other day and it's close to being smoked, looks pretty chronic and it's one of the lower immature buds, nothing like the tops. :thumbup:


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OfflinegeokillsA
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LED's [Re: Data]
    #262110 - 08/09/09 11:31 AM (10 years, 2 months ago)

Interesting that the Boxer GrowL LED you're using features orange lights.  From what I could gather, light in the green/yellow/light orange spectrum provides minimal benefit for greenhouse growery.  Chlorophyll a and b production occur primarily at 400 - 475 nm (violet + blue) as well as 640 - 675nm (deep orange - deep red).  I read that orange wavelengths reaching into the 620 - 640nm range could help phycocyanin production, but as phycocyanin is known best as the blue pigment found predominantly in blue-green algae (cyanobacteria), I'm not sure it is relevant to cannabis?

At any rate, that's why I'm including 20% 4500K White LED's on the array I'm getting later this month... because I'm sure those intermediary wavelengths help for various secondary processes that the plant must go through for efficient production.  As for the UV remark, I am also including 5% violet/deep blue LED in the 430nm wavelength.  Not quite UV, but getting close and good for supporting chlorophyll a and beta carotene action.

I wonder what the viewing (light dispersion) angle is on the LED's you're using?  I'm going to run with 60 degrees on this first prototype, in order to focus the light in a tight enough beam that it can carry some distance to penetrate into the canopy, but wide enough that the various wavelengths can cross paths (mix) before hitting the top of the plant when placed about 10" above the canopy.


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InvisibleDataM
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Re: LED's [Re: geokills]
    #262176 - 08/09/09 01:40 PM (10 years, 2 months ago)

here's a few pics to help with the angle maybe...


the last one is for arrangement...

hope this helps...
agmotes165


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Offline114425
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Re: LED's [Re: Data]
    #262248 - 08/09/09 03:09 PM (10 years, 2 months ago)

what kind of temp was your room averaging? they say these led lights cut fown on temp with built in fans but id like to hear from someone whos used one not trying to sell one.


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InvisibleDataM
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Re: LED's [Re: 114425]
    #262257 - 08/09/09 03:28 PM (10 years, 2 months ago)

I was ventilating with a vortex VTX 400 through a can filter 9000...in a Homebox S, which is 31.5"x31.5"x63"...and i dont think I ever got above 85oF. And this is with the ambient air outside of the tent around 75-80o

I believe that LED are not very efficient light sources when talking about Lumens/watt. The 90W growlight that i use is rated at 4000 lumens.
The reason why they reduce heat output is because of their specific wavelengths, so that while my grow light produces 4000 lumens, almost all of that light is absorbed and used by the plant, as where it would take b/w 35000 and 40000 lumens of standard daylight to produce the equivalent amount of photo-active red/blue light. Therefore you can run lower lumens, and lower wattage. The only drawback I see about the LEDs is that they are missing the UV portion of the spectrum that seems to be essential for THC production in copious amounts. These essential wavelengths of light are produced in decent amounts by other HID light sources, but I believe that incorporating a small UVB light in ur grow room and running it 1-3 hours during the middle of the day cycle in the 12/12 lighting to see any stellar results.

We will see if the CFLs produced enough UV when this stuff finishes curing :grin:
agmotes165


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InvisibleDataM
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Re: LED's [Re: Data]
    #262903 - 08/10/09 06:37 PM (10 years, 2 months ago)

Just started my new Satori growlog, feel free to check it out here


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Re: LED's [Re: Data]
    #266796 - 08/18/09 05:06 AM (10 years, 2 months ago)

any pics of the finished buds?


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InvisibleDataM
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Re: LED's [Re: 114425]
    #266820 - 08/18/09 09:00 AM (10 years, 2 months ago)

not yet sir...they are not done with the drying process....I hope to transfer them to the jars for curing in the next few days

peace
agmotes165


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OfflineIntegra21
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Re: LED's [Re: Data]
    #266828 - 08/18/09 10:41 AM (10 years, 2 months ago)

not know if you know the tricks, but if you bed the stem and it has a sharp crack and breaks, its dry. or if you checked wet weight before you hung, its dry when it looses approx. 3/4 of the original weight. Just wait till you smoke it after 3 weeks of jaring. at that point my Widow started tasting fantastic. Later Agmotes.


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InvisibleDataM
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Re: LED's [Re: Integra21]
    #266854 - 08/18/09 01:08 PM (10 years, 2 months ago)

yessir...some of the smaller twigs are beginning to crack when bent...the larger branches are taking a little longer to get there...I will probly start curing in the next 2-3 days.

I actually had the pleasure of doing a side-by-side comparison of cured vs. non-cured bud last night. I tried the cured then the un-cured, and the uncured tasted like straight ass and burned all the way down. The cured bud on the other hand gave me almost no trouble and actually had a pleasant taste to it. These buds were taken from the same plant, and one bud was cured, the other just had an extended drying...The difference was very noticable.

peace
agmotes165


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OfflineIntegra21
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Re: LED's [Re: Data]
    #266860 - 08/18/09 01:25 PM (10 years, 2 months ago)

not know if you know the tricks, but if you bed the stem and it has a sharp crack and breaks, its dry. or if you checked wet weight before you hung, its dry when it looses approx. 3/4 of the original weight. Just wait till you smoke it after 3 weeks of jaring. at that point my Widow started tasting fantastic. Later Agmotes.


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InvisibleInverted
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Re: LED's [Re: Integra21]
    #266861 - 08/18/09 01:30 PM (10 years, 2 months ago)

Hmmm double post?


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InvisibleDataM
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Re: LED's [Re: Inverted]
    #266865 - 08/18/09 01:54 PM (10 years, 2 months ago)

I hope so...that would be some intense deja vu


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InvisibleInverted
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Re: LED's [Re: Data]
    #266878 - 08/18/09 02:16 PM (10 years, 2 months ago)

Hahah so you haven't even tested any popcorn nugs or anything from your plant?  It looks delicious, I sure know I couldn't keep my scissors off her for that long!  Smoke a bowl of it and tell me how it is?  Or mail me some... lol jk


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InvisibleDataM
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Re: LED's [Re: Inverted]
    #266900 - 08/18/09 02:54 PM (10 years, 2 months ago)

haha yea i need to try some...maybe when i put them into curing ill pop off one of the smaller nugs and try it.


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InvisibleInverted
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Re: LED's [Re: Data]
    #266907 - 08/18/09 03:11 PM (10 years, 2 months ago)

They don't need to be totally dry to smoke, I smoke em' fresh off the plant sometimes.  You must not be crunched for smoke money I'd assume.  You just buy weed and grow occasionally?  I try to only smoke what I grow...  Try that shit!  Neow!  :whip:


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InvisibleDataM
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Re: LED's [Re: Inverted]
    #266942 - 08/18/09 04:56 PM (10 years, 2 months ago)

I only smoke what i grow...but i dont smoke all the time...mostly weekends and vacations...sometimes when im stressed...but its mostly to see how good of a smoke I can grow/cure.


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InvisibleInverted
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Re: LED's [Re: Data]
    #266943 - 08/18/09 05:10 PM (10 years, 2 months ago)

Aww I see so that'll last you a good while then... See my single plant will probably last me for about 3-4 weeks, if that... its sad really, and I don't even smoke bowls.


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InvisibleDataM
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Re: LED's [Re: Inverted]
    #268106 - 08/20/09 07:16 PM (10 years, 2 months ago)

So I just moved all of the harvest to a jar for curing...it all fit in a single jar...I did save 2 small popcorn buds and I will probly be trying them out 2morrow night...so look for a preliminary smoke report in the next few days :grin::thumbup:

peace
agmotes165


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