Bridgelux EB-series on a 2' x 4' SCROG

graying.geek

Well-Known Member
Compost the popcorn???? Why not make some canna coconut oil with them? the oil is good for not only cooking, it makes an excellent topical also. I use it on my legs at night as I get terrible leg cramps in my sleep. works for many other things also, and you can cook with it too. Oil not strong enough? then add the same amount of trim to the oil and cook it a second time. A lot
more cannabinoids in the trim than you think!
I was being more pissy than practical. Cannabutter is actually my preferred method of cannabis consumption, so yeah, that's probably where the popcorn will end up. I'll vape some to try it out, and if it has any potency at all it'll go into the butter.
 

StonerCol

Well-Known Member
@graying.geek what a fucking awesome thread! I'm in the same position - got a 4x2, 2xblurple 300Watters (Actual 145W) and I need me more light for my flowering girls! Going to follow your example and build something very similar so thanks very much for documenting your build & grow. It has and will be massively helpful...and the help you received was amazing too. EXACTLY what a Forum should be so thanks to all who contributed. This thread was exactly what I was looking for and will be my inspiration for my EB-DIY!

Cheers all!
:peace: (: :weed:
 

graying.geek

Well-Known Member
@graying.geek what a fucking awesome thread! I'm in the same position - got a 4x2, 2xblurple 300Watters
Dude. I've been expecting you! Been watching your "like" alerts all day and figured you were either hard-up for "like" points, or you were enthusiastic about what you were reading. From your post, I suspect it's the latter. :-)

I checked out your concurrent thread and you're paralleling my situation pretty closely. If you go with the EB's -- which I highly recommend for a number of reasons -- you are gonna fall in love with these lights. There's no doubt you can get a bit higher efficiency with QB's or Sammy H-series, but as you've pointed out, going to the cutting edge will come a much higher cost, and a year from now there will be something with incrementally better specs, but at a multiple of the cost, much as the QB's and H-series are now. Just depends on your priorities.

: said:
..and the help you received was amazing too. EXACTLY what a Forum should be so thanks to all who contributed.
Yeah, no kidding. During my first grow I posted my newbie questions on another forum and while I generally got a few answers, nothing of the quality and positivity that I've experienced here on RIU. These folks have been great and I wouldn't have been semi-successful had it not been for their help.

: said:
This thread was exactly what I was looking for and will be my inspiration for my EB-DIY!
However limited my experience might be, it's worth pointing out a couple of things that I didn't anticipate. First, leverage the capability of spreading the strips out over the whole grow area. Look back a couple of pages on this tread and you'll see my discussions about spacing out the strips over the whole scrog canopy. Doing so will assure optimal light spread over the entire grow area, not jut the middle.

Secondly, when I was first ramping up 6 months ago, I struggled with how to setup the 4 small fans I had in order to give my girls circulation and movement. Trying to optimize for space in a 2x4 grow area resulted in the fans taking up precious floor space and hanging from the walls, etc, and even then they only did a half-ass job and I had to keep adjusting them. Now, with the aluminum frame, I just picked up 2 x 19" fans from Home Depot for $20 apiece, and laid them face down on the light frame (you can see them in some of my photos). This way, they keep the lights cool, and also blow down through the frame to keep the air moving through the plants below. It's all the circulation I need. Just be sure to build your frame using 0.125" x 1 x 1 angle-aluminum. The heavier metal provides a better heat sink, and gives the structure you need to support fans, or whatever else you want to put above the plants.

I'm happy to answer questions or provide input on your design.
 

StonerCol

Well-Known Member
Dude. I've been expecting you! Been watching your "like" alerts all day and figured you were either hard-up for "like" points, or you were enthusiastic about what you were reading. From your post, I suspect it's the latter. :-)

I checked out your concurrent thread and you're paralleling my situation pretty closely. If you go with the EB's -- which I highly recommend for a number of reasons -- you are gonna fall in love with these lights. There's no doubt you can get a bit higher efficiency with QB's or Sammy H-series, but as you've pointed out, going to the cutting edge will come a much higher cost, and a year from now there will be something with incrementally better specs, but at a multiple of the cost, much as the QB's and H-series are now. Just depends on your priorities.



Yeah, no kidding. During my first grow I posted my newbie questions on another forum and while I generally got a few answers, nothing of the quality and positivity that I've experienced here on RIU. These folks have been great and I wouldn't have been semi-successful had it not been for their help.



However limited my experience might be, it's worth pointing out a couple of things that I didn't anticipate. First, leverage the capability of spreading the strips out over the whole grow area. Look back a couple of pages on this tread and you'll see my discussions about spacing out the strips over the whole scrog canopy. Doing so will assure optimal light spread over the entire grow area, not jut the middle.

Secondly, when I was first ramping up 6 months ago, I struggled with how to setup the 4 small fans I had in order to give my girls circulation and movement. Trying to optimize for space in a 2x4 grow area resulted in the fans taking up precious floor space and hanging from the walls, etc, and even then they only did a half-ass job and I had to keep adjusting them. Now, with the aluminum frame, I just picked up 2 x 19" fans from Home Depot for $20 apiece, and laid them face down on the light frame (you can see them in some of my photos). This way, they keep the lights cool, and also blow down through the frame to keep the air moving through the plants below. It's all the circulation I need. Just be sure to build your frame using 0.125" x 1 x 1 angle-aluminum. The heavier metal provides a better heat sink, and gives the structure you need to support fans, or whatever else you want to put above the plants.

I'm happy to answer questions or provide input on your design.
Dude. I'm here. :D
I read every word of your thread and so I saw the point about the spread of the strips - one thing you cannot do with other boards that you can do with this setup: One of the many positives with the EB strips.

My perspective on the fans is slightly different to yours. I think of it like this: Because heated air rises I like to have the fans low down and circulate air upwards towards my extraction. If I blow warm air down it just rises again so I try to avoid that, it somehow feels less efficient. I may be wrong and there is no right/wrong way of doing it but I'll experiment when I get to the build :)

Angle aluminium sounds like a no-brainer to me, I'll be using that for sure!
Thank you for the offer of advice! I'm sure I'll take it up when the time comes - hopefully that won't be too long :)

:peace: :bigjoint: :leaf:
 

klx

Well-Known Member
Excellent thread. I have been thinking about what to build for 2 new veg lights and, being a stingy fucker, these Bridgelux strips fit the bill nicely. Thanks for all the info we really are spoilt for choice these days, DIY or die!!!!

Qucik Q for any EB users out there, which K have you found best for veg? I know theoretically the 5700 should be the go to but things do not always come out as expected so any real world experience?
 

Growcob5

Active Member
Dude. I've been expecting you! Been watching your "like" alerts all day and figured you were either hard-up for "like" points, or you were enthusiastic about what you were reading. From your post, I suspect it's the latter. :-)

I checked out your concurrent thread and you're paralleling my situation pretty closely. If you go with the EB's -- which I highly recommend for a number of reasons -- you are gonna fall in love with these lights. There's no doubt you can get a bit higher efficiency with QB's or Sammy H-series, but as you've pointed out, going to the cutting edge will come a much higher cost, and a year from now there will be something with incrementally better specs, but at a multiple of the cost, much as the QB's and H-series are now. Just depends on your priorities.



Yeah, no kidding. During my first grow I posted my newbie questions on another forum and while I generally got a few answers, nothing of the quality and positivity that I've experienced here on RIU. These folks have been great and I wouldn't have been semi-successful had it not been for their help.



However limited my experience might be, it's worth pointing out a couple of things that I didn't anticipate. First, leverage the capability of spreading the strips out over the whole grow area. Look back a couple of pages on this tread and you'll see my discussions about spacing out the strips over the whole scrog canopy. Doing so will assure optimal light spread over the entire grow area, not jut the middle.

Secondly, when I was first ramping up 6 months ago, I struggled with how to setup the 4 small fans I had in order to give my girls circulation and movement. Trying to optimize for space in a 2x4 grow area resulted in the fans taking up precious floor space and hanging from the walls, etc, and even then they only did a half-ass job and I had to keep adjusting them. Now, with the aluminum frame, I just picked up 2 x 19" fans from Home Depot for $20 apiece, and laid them face down on the light frame (you can see them in some of my photos). This way, they keep the lights cool, and also blow down through the frame to keep the air moving through the plants below. It's all the circulation I need. Just be sure to build your frame using 0.125" x 1 x 1 angle-aluminum. The heavier metal provides a better heat sink, and gives the structure you need to support fans, or whatever else you want to put above the plants.

I'm happy to answer questions or provide input on your design.
How u do that make a post in a post so u dont keep makeing new post so if u say somethinking i can say something back an not make a now post lmk if u no i seen how he did that in ur post
 

graying.geek

Well-Known Member
Excellent thread. I have been thinking about what to build for 2 new veg lights and, being a stingy fucker, these Bridgelux strips fit the bill nicely. Thanks for all the info we really are spoilt for choice these days, DIY or die!!!!
Ah yes, another proud member of the "Stingy Fucker" club. At current prices you're not gonna go wrong with the EBs. I see other noobs like me on other threads asking what light they should get and amongst all of the recommendations for HPS or some expensive LED pre-builts or packages, I've gotta bite my keyboard to keep from extolling the virtues of these Bridgelux jewels.

klx: said:
Qucik Q for any EB users out there, which K have you found best for veg? I know theoretically the 5700 should be the go to but things do not always come out as expected so any real world experience?
Yeah, wish I could answer this for you. I chose all 4000k based on this graph from the data sheet:

eb_temps.png
because the 4000k seem to provide the right spectrum for both veg and bloom. I'd be interested in hearing the rationale for choosing a mix of temps, or if anyone has a link.
 
Last edited:

graying.geek

Well-Known Member
How u do that make a post in a post so u dont keep makeing new post so if u say somethinking i can say something back an not make a now post lmk if u no i seen how he did that in ur post
Not positive what you're asking, Dude, but if it's "How do you have multiple quotes in your reply?", then you just have to check out what happens when you click "reply" on someone's post. You'll note that the quoted text is surrounded by QUOTE tags. All you do is put your own QUOTE tags around whatever portion of text you want to set off as a separate quote, then insert your reply and go on to the next section you want to quote. Not a good explanation, but maybe some experimentation would help you.
 

dbrn32

Active Member
Excellent thread. I have been thinking about what to build for 2 new veg lights and, being a stingy fucker, these Bridgelux strips fit the bill nicely. Thanks for all the info we really are spoilt for choice these days, DIY or die!!!!

Qucik Q for any EB users out there, which K have you found best for veg? I know theoretically the 5700 should be the go to but things do not always come out as expected so any real world experience?
I use 5 of the 22" in 5000k in a small veg cab. They are plenty good enough, but the 5700k will work too.
 

klx

Well-Known Member
These 2 lights will be for mothers and veg in summer in a 2 x 4 replacing cobs that will go into the flower room. In winter I use a 400W hps as it keeps the room warm and speeds up the rooting time for clones. I also have a cloner and space for seedlings in that room but they are only used as and when needed.

Will post a pic when done.
 

graying.geek

Well-Known Member
So are the results in for the whole 2x4 scrog?
Heh, just finished the final weigh-in yesterday, and yup, and I think it was you who nailed the "best guess" estimate of the yield: 293 g (10.3 oz). Despite being 4 clones, I ended up harvesting in 3 phases over the course of the past 10 days. The plant that was most unaffected by the LED burn was the last to die and -- no surprise here -- yielded the fattest, densest buds. After test-vaping samples (yes, multiple sample; one has to be sure bongsmilie) the buds from the first 2 harvests kicked my ass with equal intensity, so despite the disappointing size, I've realized the desired effect -- a good night sleep. :sleep: I'm letting the 3rd harvest cure for a few days before sampling it, but I have high hopes. Here's my inspiration:

IMG_20170806_122302990.jpg

All told, I'm not disappointed with the the grow or the lights. Obviously, the grow could have gone better, but I believe that's called "experience," and the girls only enjoyed the EB strips for the last 5 weeks of their grow, so next time (a common refrain for new growers, am I right?) I'm shooting for a full lb., which I believe is quite reasonable and doable.
 
Top