Is this a Vero 29 killer?

ok here we go. these are all 3500K 80 CRI including the CD bin 3590. data extracted from citi tool at 25C and cree PCT @39C (to normalize 2400 mA to mid CD bin flux of 12500) - again see discussion of Tj vs. Tc in PCT earlier in this thread. I also did at 25C Tc per PCT but not a huge difference

BxIsgNN.png
 
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above is raw cobs alone per CDI list price, and $42 per 3590. the following graph accounts for $3 per cob which you might expect in cost of holders and/or labor (soldering/etc). To help level out the big vs little cob cost discrepancy

B67EuYk.png
 
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need to extract the 3590 out to 200 lm/W (damn you PCT!) ill try to add CXB3070 tomorrow

moral of story (so far)- if youre gluing up your cobs permanently to something and dont mind soldering - 1212 hard to beat

in real world applications where holders/soldering cost time and money - 1825 and 1212 are a wash

im not sure with the way the cree is trending it can catch the 1825 and 1212! regardless of how soft you run it. those are way off the map anyway, jsut redic low currents (200-400 mA) for thsoe big ass chips. The "meat" of the graph is in the 140-180 lm/W imo

at the popular 160-170 lm/W the crees are run at, you get 50-100% more lumens for your dollar with an 1825 or 1212
 
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and of course for you people of the "HPS killer" mentality

a gavita = 150,000 lumens max for $500 so put your 300 lm/$ @ 130-150 lm/W on that chart and tell me what you see... before you buy your second (or third or fourth or fifth) bulb... if Cree doesnt kill HPS the citis sure do....even considering cost drivers and sinks (who wants to work up a cost per lumen on that for us...)

also if someone wants to convert lumen into par W using LER of 3500K ill adjust
 
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BOBBY_G said:
ok here we go. these are all 3500K 80 CRI including the CD bin 3590. data extracted from citi tool at 25C and cree PCT @39C (to normalize 2400 mA to mid CD bin flux of 12500) - again see discussion of Tj vs. Tc in PCT earlier in this thread. I also did at 25C Tc per PCT but not a huge difference

BxIsgNN.png
Click to expand...

This is pretty, but I think comparing Cree at Tj=55 (allegedly accurate by adjusting down to 39C from 55C to hit 12,500 lumens), to Citizen at Tj=25 is unfair to Cree.

Just to again point out the ridiculousness of the Cree tool, I have to input Tj=8 to hit Supra's 12166lm at 2.1A Tj=50.

Why not use Supra numbers and use Tj=50 for Citizen for an equal comparison?
 
Took me a solid hour to do those. it take it for what its worth.

at best i could redo the crees at tj=8, those were easy
 
BOBBY_G said:
Took me a solid hour to do those. it take it for what its worth.

at best i could redo the crees at tj=8, those were easy
Click to expand...

No worries man, I was just being a stickler for a fair comparison. Even with Supra's numbers the Citizens would own about the same graph area.
 
thats what i found when i was searching other than Vero and cxa ( cxb )
spectrum for bloom at least isnt better than vero and cxb .
As u can see in 3000K peak is
like above 610nm ....

In fact all other cobs arent as good as Cree or vero on spectrum for our plant.

Some need to confirm or not this
 
dimebagor said:
thats what i found when i was searching other than Vero and cxa ( cxb )
spectrum for bloom at least isnt better than vero and cxb .
As u can see in 3000K peak is
like above 610nm ....

In fact all other cobs arent as good as Cree or vero on spectrum for our plant.

Some need to confirm or not this
Click to expand...

There is nothing special about the Cree or Bridgelux spectrum, I promise.
 
Evil-Mobo said:
So basically all the same............. within reason of course the lines are not right on top of each other but close enough..........
Click to expand...

Certainly nothing to lose sleep over. Relative amount of blue is probably the biggest difference...don't try to compare absolute power with these since the charts are all normalized to a relative spectral power of 1.
 
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