Bridgelux EB Series Build

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brahbbyB

Active Member
First off, thanks to everyone posting on here. Learned alot with the guides and other info you people have thrown up here.

I am looking for the best bang/buck for a small 3x3 or 4x4 setup and was looking for some feedback.

I was wondering how cheap/efficient I could make a board with individual Surface Mount LED's, as I saw quite a few Al based PCB's for sale cheap but then I came across the Bridgelux EB Series:
eb series adjust for web products page v1.4_0.jpg

http://www.bridgelux.com/products/eb-series#features
http://www.bridgelux.com/sites/default/files/resource_media/DS130 EB Series Datasheet Rev A_0.pdf

They come in ~1" wide strips in 10", 20" or 40". According to datasheet, designed to be used without a heatsink, but I could probably mount them to a thin sheet of aluminum for easy mounting hanging. They also already have power connections attached.
 
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brahbbyB

Active Member
Additionally, I was wondering would 4000k be the value to to use? They don't have a spectrum chart posted yet for the 3500k yet:
EB Series Color Spectrum.png

and would it be worth boosting the deeper reds similar to the Cree reference design?
 
Abiqua

Abiqua

Well-Known Member
brahbbyB said:
I also ran a quick comparison against a cxb3590 at similar lumen/watt and the come in about 33% more cost effective:
View attachment 3846655
Click to expand...
Those graph labels have me all fucked up...isn't there a discrepancy of 80 watts or so between the two comparisons.......but I can't be sure because the charts aren't completely congruent.....
 
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brahbbyB

Active Member
Sorry about that, I will clean it up a bit. Was just grabbing similar values off the datasheets to make a comparison. I also need to throw some citizen 1212's in there as well. Just looking for discussion on a small setup like a 3x3 or 4x4, of the benefits of a 1. Larger spread of lights 2. Similar lm/w efficiency. 3. Expensive heatsinks not required.
 
BuddyColas

BuddyColas

Well-Known Member
They look very interesting, but digikey doesn't have any in stock and cutter doesn't either yet. Where are you planning on buying them?
 
welight

welight

Well-Known Member
coolj said:
these dont need a heatsink, A 4x8 sheet of plywood 96 of these is going to be built!!!!
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The 560mm are 15.5 watts, difficult to get rid of that in wood would definitely lay them on a bit of light flat Alu bar for a full nights sleep, even Led ribbon at 30w/metre, stuck on plywood does not last. They are saying no heatsink required but a light thermal bed I think is in order
Cheers
Mark
 
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brahbbyB

Active Member
Added the 1212's, wasn't able to find any better numbers for CB3590s at a higher temp. The 1212 still look like they come out on top on these for the price.

eb-cxb3590-1212.png

I have inquired about the 3500k spectrum chart, but have not heard back yet.
 
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brahbbyB

Active Member
I think I am going to move forward with these EB series, but in the 40" length and go with larger 4' wide tent. I am looking at about 9 of the 40" modules putting me around ~407W @ 1000ma.

To drive them I was looking to use a bunch of the Mean Well LDD-1000H mounted on some 5UP PCB's.
http://www.ebay.com/itm/Ldd-1000H-5-channels-LED-driver-on-PCB-Board-/311516001741


To power 2x of these PCB's, I'll see how cheap of a 500W+ 36/48V AC/DC Power Supply I can get. I've got an Arduino hanging around that I can use for the PWM input.
 
welight

welight

Well-Known Member
brahbbyB said:
I think I am going to move forward with these EB series, but in the 40" length and go with larger 4' wide tent. I am looking at about 9 of the 40" modules putting me around ~407W @ 1000ma.

To drive them I was looking to use a bunch of the Mean Well LDD-1000H mounted on some 5UP PCB's.
http://www.ebay.com/itm/Ldd-1000H-5-channels-LED-driver-on-PCB-Board-/311516001741


To power 2x of these PCB's, I'll see how cheap of a 500W+ 36/48V AC/DC Power Supply I can get. I've got an Arduino hanging around that I can use for the PWM input.
Click to expand...
I would make sure you buy a version of this board that has the LDD Socketed rather than soldered ie

that way you can mix and match drive currents or replace drivers etc
http://www.cutter.com.au/proddetail.php?prod=cut1704
Cheers
Mark
 
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Seriousbuds

Active Member
brahbbyB said:
Added the 1212's, wasn't able to find any better numbers for CB3590s at a higher temp. The 1212 still look like they come out on top on these for the price.

View attachment 3849130

I have inquired about the 3500k spectrum chart, but have not heard back yet.
Click to expand...
Serious question: why would anyone buy or build a CXB3590 setup now? aside from the Cree branding and hope of a longer lifespan
 
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Seriousbuds

Active Member
Wow, this looks like the new easiest and most economic route to a flower tent..! Even if the 1212s are cheaper on paper, when you factor in all the extra stuff you might get for a 1212 setup like cob holders, lenses, reflectors, wago connecters etc and then add the 4-10 hours it would take for a beginner to make the 1212 light, you'd probably be close to saving a lot on this new bridgelux strip build. @brahbbyB can't wait to see your build complete!

I bought 7 four foot long heatsinks for $100 off Craigslist, since these strips "don't require a heatsink" even at 1400ma I bet I can stack them up across these bars and have crazy coverage. I'm thinking about running at 700ma for maximum efficiency.. can someone tell me how many of these I'd need to be at at least 1000 PPFD? Wonder if it's even possible in a 40' square..
 
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ThaiBaby1

Well-Known Member
Seriousbuds said:
Wow, this looks like the new easiest and most economic route to a flower tent..! Even if the 1212s are cheaper on paper, when you factor in all the extra stuff you might get for a 1212 setup like cob holders, lenses, reflectors, wago connecters etc and then add the 4-10 hours it would take for a beginner to make the 1212 light, you'd probably be close to saving a lot on this new bridgelux strip build. @brahbbyB can't wait to see your build complete!

I bought 7 four foot long heatsinks for $100 off Craigslist, since these strips "don't require a heatsink" even at 1400ma I bet I can stack them up across these bars and have crazy coverage. I'm thinking about running at 700ma for maximum efficiency.. can someone tell me how many of these I'd need to be at at least 1000 PPFD? Wonder if it's even possible in a 40' square..
Click to expand...
Like welight says, these will require a heatsink.
 
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