Irish Boy's 2011 Spectra Led Grow (Revenge Of Casey Jcnes))

Green Dave said:

Lookin good Irish

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thanks sir! happy with how their looking with high temps in the 90's

Well, I think you sold me on the new 290W to compliment my 600w HPS until I have the funds to rock (2) of the 290W.

I'm using a single 600w hps in my 4 x 4 box and I need more light. How do you think these lights will work together in a 4 x 4?

Shwagbag said:

Well, I think you sold me on the new 290W to compliment my 600w HPS until I have the funds to rock (2) of the 290W.

I'm using a single 600w hps in my 4 x 4 box and I need more light. How do you think these lights will work together in a 4 x 4?

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55w per square foot is plenty, especially with how much of it will be LED! Two 290s would be 36w which I think is perfect for GLH LEDs

The only problem is that a 290W covers a 3x3 area. You wouldn't get ideal coverage with 2x290W in a 4x4. 4x180W would be a better bet IMO and more wattage.

medicine21 said:

The only problem is that a 290W covers a 3x3 area. You wouldn't get ideal coverage with 2x290W in a 4x4. 4x180W would be a better bet IMO and more wattage.

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Hmmmm 4 x 180 as opposed to 2 x 290 eh? I think I know what you mean for consistency. I will peep the 180's and compare the cost. Might not be a bad way to get started either since I could buy one at a time What kind of distance would you run a 180 from the tops? I typically LST to keep my canopies fairly consistent.

jdizzle22 said:

55w per square foot is plenty, especially with how much of it will be LED! Two 290s would be 36w which I think is perfect for GLH LEDs

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Thanks J, I be diggin on the results I'm seeing from the GLH. I'm really not even considering any other brand based on the results.

two 290's will do great in my 4x4 tent but maybe not as good as in my 4x4 tray in a open room. make sense? the reflective materail makes all the world difference. as far as what lights to choose if ur trying to do it big i would go with 4x180's i think you would get more intense light spread over allot of plants. but so far the 290's look very solid.

remember a 4x4 tray was made for a 1k HPS not a 600w, people confuse this all the time, i am talking about ideal setup. so this is why u need more light with ur 600w, its should be good for about a 3x3 tray max. am i right? now if ur going to mix the light then i would go with 2x290's all the way with the HPS in the middle, ive heard these lights work great mixed with HPS but ive never tried it just read it on another forum where dudes using a 250w HPS in the mix.

Hi Irish, good to see you still at it. That problem with the gassing would drive me nuts. Good to see you got it under control.
I still haven't got an led for my 2x4 cabinet so I'm still looking. That 500 sure is crazy bright man. A little more then I had in mind though.
Ya know I went to the website and it said the coverage for the 290 was 4x4 and here I see people saying its 3x3.
Do you think the 290 would do well in a 2x4 scrog or do you think I would need the 500?

cruzer101 said:

Hi Irish, good to see you still at it. That problem with the gassing would drive me nuts. Good to see you got it under control.
I still haven't got an led for my 2x4 cabinet so I'm still looking. That 500 sure is crazy bright man. A little more then I had in mind though.
Ya know I went to the website and it said the coverage for the 290 was 4x4 and here I see people saying its 3x3.
Do you think the 290 would do well in a 2x4 scrog or do you think I would need the 500?

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That would be 36w per square foot, which I think is perfect for GLH LEDs. A 500w would make it 62.5w per square foot like my tent, and you definitely don't need that much (in fact it might be too much with reflection in the under canopy and penetration being a bit too good). Also it would basically be using more power than you need to, and although its like 75% less heat watt for watt than HID it would be more than you could get away with. A 290 should do great for you, or should you decide to grow in a differently space area you might find it better to get 180s or just a 500 (I bought a 395w 2011 for my 2.5 x 2.5 x 6 and should have gotten a 290)

Looking good man. Stoked to see how everything turns out.

Yo irishboy hows it goin?
Wondering what you think about the new blackstar 500w led grow light which uses 3w chips?
Apparently it draws around 320 watts of power and unsure whether to get the blackstar or the 290w from glh as the blackstar is $100 cheaper, thoughts?

irishboy said:

two 290's will do great in my 4x4 tent but maybe not as good as in my 4x4 tray in a open room. make sense? the reflective materail makes all the world difference. as far as what lights to choose if ur trying to do it big i would go with 4x180's i think you would get more intense light spread over allot of plants. but so far the 290's look very solid.

remember a 4x4 tray was made for a 1k HPS not a 600w, people confuse this all the time, i am talking about ideal setup. so this is why u need more light with ur 600w, its should be good for about a 3x3 tray max. am i right? now if ur going to mix the light then i would go with 2x290's all the way with the HPS in the middle, ive heard these lights work great mixed with HPS but ive never tried it just read it on another forum where dudes using a 250w HPS in the mix.

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Yepper, makes sense, thanks Irish! Not sure which way I will go yet, but I know I will be ordering a GLH soon. I am growing in a 4 x 4 box painted matte white which reflects the light nicely. A 600 has worked tits but I def feel like I can get more yield and density if I add lighting. Happy holiday everyone, drink, smoke and relax.

cruzer101 said:

Hi Irish, good to see you still at it. That problem with the gassing would drive me nuts. Good to see you got it under control.
I still haven't got an led for my 2x4 cabinet so I'm still looking. That 500 sure is crazy bright man. A little more then I had in mind though.
Ya know I went to the website and it said the coverage for the 290 was 4x4 and here I see people saying its 3x3.
Do you think the 290 would do well in a 2x4 scrog or do you think I would need the 500?

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ya that off gassing drove me nuts!lol.

to be honest ive never seen the new new 290w. but IMO in ur case i would go with 2x180's instead of a 290w or 2x290's instead of a 500w, i just love the fact of having more core penetration. i think the 290w will work for you but i think you will be happier with the other configures i just told you IMO. the 500w will kill it IMO. i dont go by the whole W/SQF i like to hit my girls hard with light and get fat yields. is my 2x500w over kill for my 4x4 tray? yes its more then enough light, but i love the idea of hitting my girls hard ans letting them bath in light for far buds. my ideal setup is 4x290's in my 4x4 tray witch was what i wanted but the owner wanted me to test out these lights for him 1st so i said ok.

rick19011 said:

Yo irishboy hows it goin?
Wondering what you think about the new blackstar 500w led grow light which uses 3w chips?
Apparently it draws around 320 watts of power and unsure whether to get the blackstar or the 290w from glh as the blackstar is $100 cheaper, thoughts?

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IMO all i can say is GLH because i know for a fact they work great, ive seen a few good grows with the BS on the small scale, but IMO i would never trade my GLH for a BS light. the GLH meets my needs and if its not broke dont fit it, warranty and everything els dosent compare to the GLH also

Shwagbag said:

Yepper, makes sense, thanks Irish! Not sure which way I will go yet, but I know I will be ordering a GLH soon. I am growing in a 4 x 4 box painted matte white which reflects the light nicely. A 600 has worked tits but I def feel like I can get more yield and density if I add lighting. Happy holiday everyone, drink, smoke and relax.

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no problem bro, you will love these lights and i cant wait to flower because all the grows ive seen with these new lights are pulling off some crazy frosted buds and thats what i am all for the most potent buds i cant grow. i cant wait, girls are looking great and ready to rock and roll, transplanting them today and will flower in a few days. i think if you take my advice you will be happy

jdizzle22 said:

That would be 36w per square foot, which I think is perfect for GLH LEDs. A 500w would make it 62.5w per square foot like my tent, and you definitely don't need that much (in fact it might be too much with reflection in the under canopy and penetration being a bit too good). Also it would basically be using more power than you need to, and although its like 75% less heat watt for watt than HID it would be more than you could get away with. A 290 should do great for you, or should you decide to grow in a differently space area you might find it better to get 180s or just a 500 (I bought a 395w 2011 for my 2.5 x 2.5 x 6 and should have gotten a 290)

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i really dont think you can have too much led with that low of watts, ive never seen proof of that yet. as far as the 2x180's i would agree that might be a better option and one i would go with. i havent yet been able to see most of the new lights but pan of testing them all sooner or later for we can all see whats what? but the min watts i will ever do is around 1000w. thats just my style and thats what my 4x4 tray was made for with HPS so i go around the same guide line with leds because it helps me compare things a little better

adinocr7 said:

Looking good man. Stoked to see how everything turns out.

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thanks my friend

irishboy said:

i really dont think you can have too much led with that low of watts, ive never seen proof of that yet. as far as the 2x180's i would agree that might be a better option and one i would go with. i havent yet been able to see most of the new lights but pan of testing them all sooner or later for we can all see whats what? but the min watts i will ever do is around 1000w. thats just my style and thats what my 4x4 tray was made for with HPS so i go around the same guide line with leds because it helps me compare things a little better


thanks my friend

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Whats that Irish I don't think I quite understood? All I meant to say was that mid 30s wattage per square foot is optimal, past 40 you could still make use of it but I think more than 40w per sq foot is wasting some of its potential. If you go by the GLH website info they rate the panels at a coverage area for about 1 square foot for every 25-30watts, while core saturation areas are usually 1 square foot for every 60-65w. So basically I think that is what Mike found out too, 60-70 watts per square foot is the max/upper limit and 30-40 is the optimal. I don't think one should go for 60w+ per square foot unless they have a smaller space (like me with my 62w per square foot or so in my 2.5x2.5 with 395w panel). I'm sure with other companies this wattage info isn't as useful, unless they are also 3w diodes run average of 1.9-2w in 12 differen't wavelengths (only spotted 1 other company myself maybe)

jdizzle22 said:

Whats that Irish I don't think I quite understood? All I meant to say was that mid 30s wattage per square foot is optimal, past 40 you could still make use of it but I think more than 40w per sq foot is wasting some of its potential. If you go by the GLH website info they rate the panels at a coverage area for about 1 square foot for every 25-30watts, while core saturation areas are usually 1 square foot for every 60-65w. So basically I think that is what Mike found out too, 60-70 watts per square foot is the max/upper limit and 30-40 is the optimal. I don't think one should go for 60w+ per square foot unless they have a smaller space (like me with my 62w per square foot or so in my 2.5x2.5 with 395w panel). I'm sure with other companies this wattage info isn't as useful, unless they are also 3w diodes run average of 1.9-2w in 12 differen't wavelengths (only spotted 1 other company myself maybe)

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what i was trying to say is that even 2x 180's over one plant isnt a bad thing i am watching a grow right now with that and his plant is looking great so far. basically i think even one plant under a 500w GLH light would grow some insane buds, over kill? ya because you could do more but i think that one plant will yield some crazy buds. i think its hard to have too much light for a small area. not sure how you getting 30w per sqf is optimal? it could be but i always felt the more watts per sqf is better and just fatter/more dense buds per plant.

heres my girls still looking as healthy as it gets with not one miss colored leaf. they really really need to be transplanted and was going to do it today since i had time but my friend borrowed my drill and he wasn't home today and i need to drill the bottom on the 5 gal buckets for drain holes and now i couldnt get the medium into the pots yet because i didnt want to drill all that plastic and have it mix into my medium, so ill transplant tomorrow with 5 parts peat moss and 2 parts chunky perlite and about 1tbs of dolomite lime per gal of medium. then ill give them a few days to adjust to their new home before i flower them to cut down on the stress so either thur-fri day will be going 12/12.. game plan got messed up because i have more plants and didnt want them to get too big for the area and shade each other wanted to flower at 12", i just lollipoped all the bottom growth and small branches to make all the plants just grow fat tops on each branch and not worry about bottom growth and kind of get that SOG effect. every big branch i trimmed the bottom 2-3 nodes and every thing small down low to put that energy into just the tops of each big branch. i think this is going to work out great with LST. once i transplant these girls are going to take off since their root bound right now because of me being very busy lately. ill handle things tomorrow.

heres some pics for you guys of them LST'ed and lolliopoed

Looking good Irish, very healthy

DelSlow said:

Looking good Irish, very healthy

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thanks buddy!

heres the girls transplanted in their new homes. got both lights on now and will flower a little latter to let them settle in 1st and not stress so much.