Bridgelux EB Series Build

Chip Green said:

Well, I care not if the "LUX" is actually correct, its just a constant to measure against. Now at least I know where to draw the line.
Same should apply to an app LUX reading.
I did one run where I packed 15 strips at 700ma on a 2x2 frame, was getting 70K+ LUX at 8", saw no noticeable advantage over the 50K zone, in fact sorta lost yield. due to smaller footprint.....

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Fawkes420 said:

Is anyone got more info about that Bridgelux maybe is underrated their max current as said at LEDG?
"
After crunching the numbers, it’s clear that 2 families of strips stand out above the others: the Samsung F-Series Gen.3 and the Bridgelux EB Strip Gen.2. Both of these strips pack a lot of diodes per foot and offer near-identical efficiency. While the Samsung LM561C has a higher efficacy on paper (187 lm/w), you’ll notice that in our designs, the EB strips often have a higher efficacy than the F-strips. Interestingly enough, we believe the reason for this is that Bridgelux has underrated their EB Gen.2 strip max current.

If our hunch is correct and Bridgelux is, in fact, running 2835 .2W 3V Gen.2 diodes on these strips, then the 1-footers would have a true max of 1,200mA (not 700mA, as the data sheet says) and the 2-footers and 4-footers would have a true max of 2,400mA (not 1,400mA, as the data sheet says). That being said, if the true max current of these strips is significantly higher than stated, we would actually be running the strips quite soft, and, as a result, they will run at a higher efficacy than the F-series in our designs.

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Randomblame said:

At first, an HLG-185H-20 with EBgen2 strips it at least 210w net and 225w at the wall. So you can calculate with 35w/sft which is perfect to get the desired 700-800μMol/s/m²(50.000-57.000lux). Above that you need anyway additional CO² so I would call it a perfect match.
Lux meter conversations are not that accurate like PAR meter measurings but they are perfect to compared intensity levels under the same light source.
An example: Normally the intensity goes down on the sides and in the corners and with the help of a lux meter you can figure out how to distribute the strips to even out brightness across the canopy and optimize uniformity.
The solution: Closer strip spacings on the sides and the widest gap in the center. This eliminates the center hotspot and increase side brightness. This way you get up to 80% uniformity!
IMO, lux meter also the cheap ones are very useful...

Apps are only useful if your camera sensor can read values up to 60.000lx but that's rare the case especially with newer phones.

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Chip Green said:

https://www.bridgelux.com/sites/default/files/resource_media/DS131 Bridgelux EB Series Gen2 Data Sheet 20171020 Rev A.pdf

Figure 10 on the EB Gen2 Datasheet.

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Fawkes420 said:

Is anyone got more info about that Bridgelux maybe is underrated their max current as said at LEDG?
"
After crunching the numbers, it’s clear that 2 families of strips stand out above the others: the Samsung F-Series Gen.3 and the Bridgelux EB Strip Gen.2. Both of these strips pack a lot of diodes per foot and offer near-identical efficiency. While the Samsung LM561C has a higher efficacy on paper (187 lm/w), you’ll notice that in our designs, the EB strips often have a higher efficacy than the F-strips. Interestingly enough, we believe the reason for this is that Bridgelux has underrated their EB Gen.2 strip max current.

If our hunch is correct and Bridgelux is, in fact, running 2835 .2W 3V Gen.2 diodes on these strips, then the 1-footers would have a true max of 1,200mA (not 700mA, as the data sheet says) and the 2-footers and 4-footers would have a true max of 2,400mA (not 1,400mA, as the data sheet says). That being said, if the true max current of these strips is significantly higher than stated, we would actually be running the strips quite soft, and, as a result, they will run at a higher efficacy than the F-series in our designs.

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nfhiggs said:

Underrating their max current doesn't make them any more efficient. Their stated efficacy rating has nothing to do with their max current - its based how much light they put out at their rated test current of 350 mA. Their max current (either actual or stated) is not really relevant to that number.

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Dachem2010 said:

Has anyone done a build with these strips and added 660nm HE photo red from Cree and far red I guess I'm really asking any supplemental lighting people have done I know I will be adding UV just suck solarcure on has 4 ft bulbs

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projectinfo said:

Have you ever done a side by side with far reds?

Just wandering.

From what i hear its not a major difference . Donno if it s worth the hassle :/

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Dachem2010 said:

Ok for not from what I've heard of the Emerson effect but also looking at the Spectrum of the EB strips it has those spectrums in it so I didn't know if it make a big deal or not but it doesn't have any UV so I definitely want to add that I'm just having trouble finding a UV light with Spectrum in the 285 and o Meter range which is the peak absorption for the
UV 8 protein

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Dachem2010 said:

From what I've heard of the Emerson effect has an impact on rate of photosynthesis but also looking at the Spectrum of the EB strips it has those spectrums in it so I didn't know if it would make a big deal or not but it doesn't have any UV so I definitely want to add that I'm just having trouble finding a UV light with Spectrum in the 285 nm range which is the peak absorption for the
UVR8 protein

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