sensation, now we have PPFD in µmol/watt, incredible.y axis = ppfd in umol/W
You know what he meant.sensation, now we have PPFD in µmol/watt, incredible.
they can get you all the cobs you want 8 weeks from now for $42List the Citizen COBs with temps and cri, that you would like (and quantities) I will be calling CDIweb, either today or tomorrow and see what they can do.
in all fairness those were 5000k chips but i would anticipate the 3500k 80 CRI citis hang with CD bins, etc.Last but not least, @BOBBY_G is so right about the 1825. The CLU058s are the king of high watts, and it's a great value. He isn't the first person to mention Cree DB bins after testing.
so what youre saying is crees should be $20 then?s finally aboard with "density is intensity"...we see it happening
Cree's blue die still seem to be top dog. But that doesn't mean you can't implement other's to outperform like citizen possibly has.
In the 50w range...
Cree 3590= ~100ma per die....14 strings of 12
Citizen 1825= ~40ma per die...25 strings or 18
well their claimed specs led me to do a real comparison of mutiple mfrs under real world conditions. we can get all fancy-schmantzy but at the end of the day, show me a more relevant comparison than ppfd delivered at x distance vs wattage. all chips are similar in their 115ish degree pattern so i could do complex par maps but this is more about the fundamentals of an LES throwing down the photons at a distance close enough to be relevant. the sheer fact that citi tracks the "industry leading at low wattage" performance of the cree should raise eyebrows in itself... at cree's premium... esp after citi dusts cree by 30-50% at higher wattages.. real hard to bury that lead as a bias.....Nothing can really be said outside data sheet comparisons till they are put in a sphere or on a goniophotometer...and technically the data sheets came from a sphere. It's definitely eye raising. Citi needs to re arrange some strings and get a normal 36v going on.
New bins are cool, will fill a little time.so what youre saying is crees should be $20 then?
The voltage makes driver compatibility easy...nothing to do with performance. We are talking DC here.well their claimed specs led me to do a real comparison of mutiple mfrs under real world conditions. we can get all fancy-schmantzy but at the end of the day, show me a more relevant comparison than ppfd delivered at x distance vs wattage. all chips are similar in their 115ish degree pattern so i could do complex par maps but this is more about the fundamentals of an LES throwing down the photons at a distance close enough to be relevant. the sheer fact that citi tracks the "industry leading at low wattage" performance of the cree should raise eyebrows in itself... at cree's premium... esp after citi dusts cree by 30-50% at higher wattages.. real hard to bury that lead as a bias.....
the only thing citi needs to "rearrange" is their poor distribution model, because theres nothing magical about 36V other than cree chose that for their flagship line. on a $/par basis there is no better value on the LES side that im aware of
in fact its fundamental that higher voltages are more efficient (hardly a talking point, but not a penalty nonetheless)
www.eldoled.comA good high output driver with multiple outs would make this better with the higher output COBs and some smaller builds.
Cool! How much does that thing cost?
Ooooohhhh yummy!
'Winter'.I'll stick with the nothing will ever compete with it View attachment 3704669
Winter is for basking in the sun in the tropics with harvest done'Winter'.
So much for no competition.