Rocket Soul
Well-Known Member
Supposedly arriving soon as per @mr. Amsterdam so it needs a thread for reference. 90 cri versions aswell, like we seen on bridgelux vesta.
Bridgelux eb strips Gen 3
- Thread starter Rocket Soul
- Start date
Rahz
Well-Known Member
Here is a chart you might find useful. These are absolute PPF values derived from spot measurements of CLU058-1825. In the case of 90CRI the 600-700 is almost identical for 2700 and 3000 but the 3000K sample contains more than 12% blue compared to 2700K's less than 9%. If I had included the 580-680 range, which some consider to be the most valuable 100nm span, 3000K would have a higher PPF in that range (454 vs 451), but still basically the same.
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mr. Amsterdam
Well-Known Member
Thanks for this! Are there also maybe values from 2700K CRI 70 and CRI 80?
caretak3r
Well-Known Member
in this chart, 3000K betters 2700K in most regards in terms of PPF in the given spectrum.... I'm guessing 2700K missing PPF comes in > 700nm ? (in comparison to the others)....
Rahz
Well-Known Member
I don't have that data but looking at the SPDs, not really. Probably less than 1% or so in the >700 range over 3000K 90CRI for instance. I think I worked out the +700 percentages in another data set (which I don't have) and none of them were more than a few percent of total... so any increase in that area will be very small.
caretak3r
Well-Known Member
so just losses to phosphor? I'm trying to figure out where the radiant energy went.
caretak3r
Well-Known Member
i guess we are way off topic, but I'd love to know how efficient the all-blue citi 1212 is compared to some of the whites.... curious to know how much power is lost to conversion.
Rahz
Well-Known Member
SPD would need to be digitized and measurements taken, but you could get a rough idea by checking the current/luminosity in the datasheet and comparing it to the luminosity per watt of the dominant wavelength.
It should be easy to get 65-68% efficiency from the blue cobs. If someone starts building red pucks I guess we'll see some blurple builds.
It should be easy to get 65-68% efficiency from the blue cobs. If someone starts building red pucks I guess we'll see some blurple builds.
caretak3r
Well-Known Member
hehe, ya, red, white, and blue builds
I have a red puck of osram SSLs (660nm)... I'm thinking of having one made that mixes 630/660/and maybe a few 730.... pair that with a 6500K white or 5700K white cob... might be interesting
Rahz
Well-Known Member
Yea, that would be interesting to see. Think it would be pink? Maybe that would preferable to using blurple. I'd try 20-30% 6500K 70CRI and 70-80% red and photo red. Wouldn't hurt to throw in some amber and red orange. That whole range is good news for chlorophyll, but it would take a little work to figure out the efficiency of the other colors. Too bad only photo red has mW listed in the datasheet.
CannaBruh
Well-Known Member
specs are useless without validation
Rocket Soul
Well-Known Member
Ok, calm down, specs arent available yet. I started the thread after mr A had mentioned this in another thread, so i started a new thread so as to not clogg down the old one with shit about these strips. And now everone is clogging down this thread with spectrum chat and complaints about lack of content. Why dont everyone just wait until some details emerge and we get back to this?
mr. Amsterdam
Well-Known Member
The colour shifts to the red side of the spectrum on the higher CRI so i think there are more photons above the 700nm range for the 2700K 90 CRI.
But i want to use the 2700K 80CRI or maybe 70CRI as a flower only light. I think that will outperform the 3000K (That's what i'm looking for in the end.)
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mr. Amsterdam
Well-Known Member
From my rep:
"We increase the efficacy from ~180lm/W to ~200lm/W."
Nice
"We increase the efficacy from ~180lm/W to ~200lm/W."
Nice
welight
Well-Known Member
you might like our custom lobs on 28mm CLU48 footprints, this one is 450 Rb, with 660 Deep Red, with some PC Amber and Lime, to give it some HPS type spectrumhehe, ya, red, white, and blue builds
sureshot138
Well-Known Member
specsyou might like our custom lobs on 28mm CLU48 footprints, this one is 450 Rb, with 660 Deep Red, with some PC Amber and Lime, to give it some HPS type spectrum