Grownsince95
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well of course you did! 
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beluga
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Yeah... Bridgelux EB Gen 2s.
I dunno man... from what I've read, Bridgelux is on par with the Samsung Q series and some of what the guys at the LEDGardner forums have been testing swear they can run higher and more efficiently than they even spec.
They also have Gen 3s out and another horticulture series I'm forgetting the name of... vesta maybe?
Definitely worth the consideration for the price point... not to throw more variables at ya...
Aqua Man
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@beluga I'm off to bed but would you mind some help on this... im looking at it and I can get samsung strips for like $7 per 10w so if I do a 660w fixture it would be about 475 in just strips no?
beluga
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Once I'm at the desktop, I'll love to help you make a configuration of it.
I'm no super expert and the guys at the LEDGardener forum could probably lead you way better. But I'll still love to go over it.
Aqua Man
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Nah I'm all about variables. Rather get in deep than just dip the toes
Aqua Man
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I see now bridgelux is way cheaper.
beluga
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Would love to... also once I'm at the desktop... I suck on this phone. You got the model #'s?
Seems nuts for that price.
Aqua Man
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Yeah in CAD. they are the 561C diodes... what's in my hlg currently. I move fast lol
SI-B8T05128HUS Samsung Semiconductor, Inc. | Optoelectronics | DigiKey
Order today, ships today. SI-B8T05128HUS – LED Lighting COBs Engines Modules LED Module series White, Neutral Linear Light Strip from Samsung Semiconductor, Inc.. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
Aqua Man
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New tech better price i think.
horticulturelightinggroup.com
QB144 V2 Quantum Boards
High Efficiency LED Light Engines. 144pcs Samsung LM301H LED per board
horticulturelightinggroup.com
Aqua Man
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Ok off to bed catch up tomorrow.
beluga
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Before I just start going into configurations, I figure I should outline my considerations and how I landed on my decision.
So, my big question and what I have no personal experience with is the penetration of QBs vs strips.
I can pretty much guarantee strips have better spread and coverage... my 240w strip build covers 2'x4' easily because its 22" x 45", but I'm seriously dubious that a 240w QB fixture that's 10" x 26" can cover that as well. I feel like the light spread from LEDs is kinda squat, so, right there QBs seem a lot less efficient.
Again... no experience with QBs, so I'm just speculating. People obviously get great results out of them... but if you're going for optimal...
From there you have your two contending top dog strips as far as performance and efficiency... Samsung F-series and Bridgelux EB Gen 2. (May have changed recently, but the LED community is kinda
about it right now, as far as I've gathered.)
For the same reason I'm dubious about QB coverage and penetration... Samsung F series strips' diodes are packed more tightly together... so, you're only using 4 two foot strips over 4' as opposed to 12 two foot Bridgelux strips...
Which is where heat management comes into play, too... stacking up a bunch of strips runs them soft which means you don't need to worry about crazy heatsinks... whereas QBs and F series definitely do.
Also, replacing strips is way more practical and efficient than replacing a board and replacing one of twelve $5 strips is better than replacing one of four $22 strips.
Not only for price, but also for missing a smaller fraction of your light output when something does fail.
From there, it really seems like just a brand preference thing.
Depending on who runs the test in what configuration, some people get better results out of Samsung's, some get better one's out of Bridgelux.
I definitely want to build a Samsung fixture and do a side by side. Might be a Christmas bonus thing... I've got 3 more 2 x 4 fixtures to deck out my tent with, so... it'll be neat.
Then there's the far red stuff. Looking into soldering my own MCPCBs for that... pretty cheap addition, surprisingly. But I'm curious how it effects the watt/sqft tolerance of the plants...
Should have hit the hay a while ago, but this shit gets my gears turning...
So, my big question and what I have no personal experience with is the penetration of QBs vs strips.
I can pretty much guarantee strips have better spread and coverage... my 240w strip build covers 2'x4' easily because its 22" x 45", but I'm seriously dubious that a 240w QB fixture that's 10" x 26" can cover that as well. I feel like the light spread from LEDs is kinda squat, so, right there QBs seem a lot less efficient.
Again... no experience with QBs, so I'm just speculating. People obviously get great results out of them... but if you're going for optimal...
From there you have your two contending top dog strips as far as performance and efficiency... Samsung F-series and Bridgelux EB Gen 2. (May have changed recently, but the LED community is kinda
about it right now, as far as I've gathered.)For the same reason I'm dubious about QB coverage and penetration... Samsung F series strips' diodes are packed more tightly together... so, you're only using 4 two foot strips over 4' as opposed to 12 two foot Bridgelux strips...
Which is where heat management comes into play, too... stacking up a bunch of strips runs them soft which means you don't need to worry about crazy heatsinks... whereas QBs and F series definitely do.
Also, replacing strips is way more practical and efficient than replacing a board and replacing one of twelve $5 strips is better than replacing one of four $22 strips.
Not only for price, but also for missing a smaller fraction of your light output when something does fail.
From there, it really seems like just a brand preference thing.
Depending on who runs the test in what configuration, some people get better results out of Samsung's, some get better one's out of Bridgelux.
I definitely want to build a Samsung fixture and do a side by side. Might be a Christmas bonus thing... I've got 3 more 2 x 4 fixtures to deck out my tent with, so... it'll be neat.
Then there's the far red stuff. Looking into soldering my own MCPCBs for that... pretty cheap addition, surprisingly. But I'm curious how it effects the watt/sqft tolerance of the plants...
Should have hit the hay a while ago, but this shit gets my gears turning...
Frankster
Never trust a doctor who's plants have died.
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The source I'm getting for the samsungs diodes were around $18-23 per 75 w. (depending on configuration) The link is here, if anyone is interested. After getting them and inspecting up close, I can tell these are the real deal.
Although, these are the most expensive out of the bunch, I think there worth it. Full spectrum 2700k Should be pretty sweet for ripening.
Frankster
Never trust a doctor who's plants have died.
Supporter
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Before I just start going into configurations, I figure I should outline my considerations and how I landed on my decision.
So, my big question and what I have no personal experience with is the penetration of QBs vs strips.
I can pretty much guarantee strips have better spread and coverage... my 240w strip build covers 2'x4' easily because its 22" x 45", but I'm seriously dubious that a 240w QB fixture that's 10" x 26" can cover that as well. I feel like the light spread from LEDs is kinda squat, so, right there QBs seem a lot less efficient.
Again... no experience with QBs, so I'm just speculating. People obviously get great results out of them... but if you're going for optimal...
From there you have your two contending top dog strips as far as performance and efficiency... Samsung F-series and Bridgelux EB Gen 2. (May have changed recently, but the LED community is kinda
For the same reason I'm dubious about QB coverage and penetration... Samsung F series strips' diodes are packed more tightly together... so, you're only using 4 two foot strips over 4' as opposed to 12 two foot Bridgelux strips...
Which is where heat management comes into play, too... stacking up a bunch of strips runs them soft which means you don't need to worry about crazy heatsinks... whereas QBs and F series definitely do.
Also, replacing strips is way more practical and efficient than replacing a board and replacing one of twelve $5 strips is better than replacing one of four $22 strips.
Not only for price, but also for missing a smaller fraction of your light output when something does fail.
From there, it really seems like just a brand preference thing.
Depending on who runs the test in what configuration, some people get better results out of Samsung's, some get better one's out of Bridgelux.
I definitely want to build a Samsung fixture and do a side by side. Might be a Christmas bonus thing... I've got 3 more 2 x 4 fixtures to deck out my tent with, so... it'll be neat.
Then there's the far red stuff. Looking into soldering my own MCPCBs for that... pretty cheap addition, surprisingly. But I'm curious how it effects the watt/sqft tolerance of the plants...
Should have hit the hay a while ago, but this shit gets my gears turning...
Yea, basically I agree with everything you stated there, I really think spreading them out is the way to go, both with heat management, and also with penetration, and being able to dial it down on the plants tighter and more efficiently, without having problems with too much light, or plant burn. That's why I was thinking only going 16 inches wide, and just doing them in a ladder fashion, maybe 6-8 foot long, because it would be spread out nicely, maybe even make it to where the rails can be adjusted, and either moved together, or spread apart, depending on what's optimal. Sorta like the syd system I have, but longer and more narrow.
The quantums are great units, but they do concentrate the light too tightly, IMO and are probably less efficient, it seems like a wasteful configuration. But doing it spread out, is a bit more expensive, I think. So I think that's why were seeing these types of units, because there simple/easier/cheaper to produce.
beluga
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This is where I'm really not sure about legitimacy... or the specifics to soldering a strip... and why I'm adamant about buying from a reputable place like Digi-Key.
Some red flags - They crossed out the specs on the product label. China-made. No series or model number... I can't, for the life of me, find anything labeled Sun Board M3.... They also state 30mm x 400mm on the label but on the strip they printed 400x300... odd... but, China-made. They're damn good at replicating product labels, but they definitely make oversights like that. Also haven't seen a PC board that's 400mm
So, that's just my skepticism.
Now, looking at the product for its pricepoint and what they give you in the description, I throw up another red flag right away...
So, right off the bat, they're misrepresenting the product by listing its max output... like what would burn them up in no time...
But they do make mention of their efficient rating...
In reality, you're looking at about 33 - 35 watts. (1.4A • 24V = 33.6W)
So, you could run 8 of those puppies and get a nice 2' x 4' spread. Although... 400mm is only 15.74"... would probably still suffice.
But for $184 for just the strips...
I don't want to be a dark cloud on this, and I might be wrong and not seeing something. But I'm dubious.
Last edited:
beluga
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So, based on my above considerations, and probably a lack of full understanding of the action of diodes... I think the big contenders are the Bridgelux EB series and the Samsung Q series
Bridgelux
Samsung
Both are single strip, both 80 CRI, similar forward voltage.
Samsung has a better lumen/watt.
(Debatably)
Bridgelux has a higher current rating.
(So you need fewer to reach your sweet spot with wattage/sqft)
However, that definitely makes the Samsungs more efficient.
Both should do fine without crazy heatsinks... aluminum square rods or even baking sheets work great and are cheap.
Extrusions are amazingly modular and aren't too much more expensive... plus, no drilling or modification required... has channels to tuck away your wiring... it's just great.
If you check out the first few pages of my diary, you'll see that you need to be more specific than I was to get your frame super solid, but mine is only slightly wobbly but fastened rock solid... nothing will detach and gravity takes care of keeping the strips facing downward.
It is Heavy. Probably 40lb? I have it hung in one of those standard iPower tents and I don't notice any bowing of the metal tube frame or anything.. but it seems
.
Samsungs are still more than twice the price, however, and since you need more of them to meet your wattage, even more expensive.
Hopefully I didn't go off into too much unwanted detail here...
@Frankster I think we could still make something work out of the strips you've got there... I would just definitely run them at the 1400mA.. unfortunately, hacking that listed wattage in less than half.
Bridgelux
Samsung
Both are single strip, both 80 CRI, similar forward voltage.
Samsung has a better lumen/watt.
(Debatably)
Bridgelux has a higher current rating.
(So you need fewer to reach your sweet spot with wattage/sqft)
However, that definitely makes the Samsungs more efficient.
Both should do fine without crazy heatsinks... aluminum square rods or even baking sheets work great and are cheap.
Extrusions are amazingly modular and aren't too much more expensive... plus, no drilling or modification required... has channels to tuck away your wiring... it's just great.
If you check out the first few pages of my diary, you'll see that you need to be more specific than I was to get your frame super solid, but mine is only slightly wobbly but fastened rock solid... nothing will detach and gravity takes care of keeping the strips facing downward.
It is Heavy. Probably 40lb? I have it hung in one of those standard iPower tents and I don't notice any bowing of the metal tube frame or anything.. but it seems
.Samsungs are still more than twice the price, however, and since you need more of them to meet your wattage, even more expensive.
Hopefully I didn't go off into too much unwanted detail here...
@Frankster I think we could still make something work out of the strips you've got there... I would just definitely run them at the 1400mA.. unfortunately, hacking that listed wattage in less than half.
Aqua Man
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Did a bit more reading today... DIY is attractive but I think for the benefits I'm looking for im not gonna save a lot of money. I need the efficacy to be as good as possible because of my access to wattage. Still toen but don't think the DIY will work for me. I'm likely to end up right where I am with my current light with better spread.So, based on my above considerations, and probably a lack of full understanding of the action of diodes... I think the big contenders are the Bridgelux EB series and the Samsung Q series
Bridgelux
Samsung
Both are single strip, both 80 CRI, similar forward voltage.
Samsung has a better lumen/watt.
(Debatably)
Bridgelux has a higher current rating.
(So you need fewer to reach your sweet spot with wattage/sqft)
However, that definitely makes the Samsungs more efficient.
Both should do fine without crazy heatsinks... aluminum square rods or even baking sheets work great and are cheap.
Extrusions are amazingly modular and aren't too much more expensive... plus, no drilling or modification required... has channels to tuck away your wiring... it's just great.
If you check out the first few pages of my diary, you'll see that you need to be more specific than I was to get your frame super solid, but mine is only slightly wobbly but fastened rock solid... nothing will detach and gravity takes care of keeping the strips facing downward.
It is Heavy. Probably 40lb? I have it hung in one of those standard iPower tents and I don't notice any bowing of the metal tube frame or anything.. but it seems
Samsungs are still more than twice the price, however, and since you need more of them to meet your wattage, even more expensive.
Hopefully I didn't go off into too much unwanted detail here...
@Frankster I think we could still make something work out of the strips you've got there... I would just definitely run them at the 1400mA.. unfortunately, hacking that listed wattage in less than half.
beluga
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Definitely check out the LEDGardener forums... there are engineers basically on standby and they're crazy helpful.
They have their forum split up into strip/qb/cobs/general, so you can usually get some pretty solid advice based on your situation.
They have their forum split up into strip/qb/cobs/general, so you can usually get some pretty solid advice based on your situation.
Dirtbag
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Lol man.. my old school SE hps get no love anymore
beluga
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Lol man.. my old school SE hps get no love anymore
Been thinking about firing em up.
It's been probably 10 years, so they might explode...
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