Well I gotta tell y'all the CXA3070 will be $21.50 in November Happy Halloween and the CXB3590 will be $45.50 game changer Kingbrite rocks
Based on the driver, RS is running a 72v 3590 @350ma which is using only 25% of the chips potential, he could probably run fanless if he wanted. With a 5k DB binned chip (the second brightest in the line), RS is getting maybe 5k lumens from that current so his unit is ~36-40k lumens in this config. And probably cold as ice with that one fan.
3590's are probably the baddest assed led cobs ever commercially made. But without an engineering degree, to build custom drivers, they are difficult to utilize.
Why?
Because you have virtually no drivers commercially available to run them at their optimum levels at a remotely affordable price. Dammit said the same thing twice ...
Driver designs have limitations, compromises that are made between voltage and current. You need a Constant Current Driver to give you 280 volts to run four 3590's ? Fine , but you will need to sacrifice the maximum current available, meaning you only get max 700ma in a driver design you can build commercially and make a profit on.
Same goes for the current side of it; say you are using the 32v 3590 and you want to run 4 on a driver. thats 144v but wait , the current these chips accept goes up over 3 amps! does meanwell make a driver for this ? Not that I can find (could be wrong , Ive been searching for only about 4 months), so Im making an assuption yes, but if driver manufacturers could make drivers for the 3590s affordably, they would have done so already, these chips have been out for nearly 2 years, right?
So yeah , maybe Im wrong and a few of you enlightened individuals can school me and tell me what an idot I am , but this is just where im at right now.
Which leads me to ask this question; Is it possible to stack drivers on a rail? Could you wire 2 HLG-185H-C1400 (1400ma@71-143v) in parallel for a string of 3590 led's? Would that give you double your voltage and current ?
Its been 30 years since my high school electronics classes, so Im a little fuzzy on this.
Could that be the reason major grow light companies arent using these chips? I mean , yes these manu's have EE's on staff to design the drivers for their lights , but is it possible noone would drop 5 grand for it ? Ive seen stadium lighting up to 800w going for ~$3-4k, aircooled and hitting 96k lumens, but those arent using the 3590's.... I mean , I wouldnt pay 3 grand for a light when an hps is going for 1/10th of that...
Oh and THANKS Realstyles, for the ICMag 3590 Tutorial.
daca citeai tu in sectiunea de led macar asa putin aflai raspunsul la intrebarea ta. si nu e suparat pe leduri, ci pe ala care le foloseste la 25% din putere. chiar ieri am gasit un post care descria in mare detaliu ce e cu binningul.
da fuq is binning?
"All XLamp LEDs are tested and sorted by color and brightness into a unique bin. each bin contains LEDs from only one color and brightness group and is uniquely identified by a bin code." Bassically the binning tells us the awesomeness of the chip, more awesome=more light=more bud
View Image
Choosing the correct binning can make or break this project so I advise to never buy chips from an unreputable seller and always know what binning you are getting- as we are chasing efficiency this is key so listen up
as described above binning will be shown in the model number
e.g. CXA3070-0000-000N00Z230F this is a z2 binning
better binning is... well better lol you should down load the spec sheet of the chip you are considering to see the dif binnings available and choose the best one the seller has(highest luminous flux)
apropo de 3070 si 3590.
ce te-a facut pe tine sa alegi prima optiune?
si ce vrea sa zica nenea asta aici? pe romaneste. de ce e suparat pe 3590 si care e treaba cu binningu asta?
Driveru' de 280Vdc este o banalitate. Singura problema este ca trebuie sa ai 220-230Vac pe bune, adica sa utilizezi un stabilizator de tensiune inainte, insa astea sunt ieftine. Sa alimentezi 8 led-uri de 32-36V sau 4 de 72 este simplu si nu ai limitari de curent majore, pierzi doar puterea echivalenta cu cea a unuia dintre led-urile din sir (ca mai tre sa bagi o rezistenta sau o sursa de curent constant).
dar driver cu intrare de 12-24V dc si iesire de 80-100W pentru cxb3590, gasesc, sau voi gasi curand? (nu vreau sa le tin la puterea aia, decat daca le pot raci.. asa ca nu va ingrijorati)