Another Cree CXB3590 DIY thread
- Thread starter captainmorgan
- Start date
Airwalker16
Well-Known Member
You mean CxB3590* and the 3590 puts out more lumens than the 3070 does.
a mongo frog
Well-Known Member
Im no expert being I've never run under cobs, but by the looks of different pics the 3070 is boss. Less leaf edging. Just what I've seen though.
bassman999
Well-Known Member
I think you mean CXB3590 not CXB3570.
The CXB3590 is a more efficient light engine that the CXB3070, but does cost more.
The difference in price is marginal compared to the energy savings to get the same lumens/par watts.
ttystikk
Well-Known Member
Exactly so, I'd only add that because CXB3590 is more efficient, it will remain competitive longer and will pay for itself fastest and thus be cheaper once long term running costs are accounted for.
These are the reasons I went ahead and spent a lil extra, because I knew I'd get my money back in lower running cost many times over.
EfficientWatt
Well-Known Member
I think when you ask "which is more efficient ?" it depends what variables you decide to factor in.
It's probably better to think of the cxb3590 as a bigger cxb3070, because really what we should look at, is at what price can I get them ?
In my case :
Buying cobs from KB, with holders and lenses
3070 were 3/4 of the price of 3590 ..
=> if you run a 3070@37.5W VS a 3590@50W (ie 3/4 of the wattage), they have just about identical min efficiency.
It all depends on the price really.
If 3070s drop, by say, 25% in price : it would be cheaper to make a *more efficient* setup with 3070's than 3590, assuming you find the good driver combo of course,
for 200W :
7x 3070 BB @28.6W beats 4x CXB3590 @50W
and that's with more point sources too, good for you plants, and good for thermal dissipation along the heatsink.
just my 0.02
It's probably better to think of the cxb3590 as a bigger cxb3070, because really what we should look at, is at what price can I get them ?
In my case :
Buying cobs from KB, with holders and lenses
3070 were 3/4 of the price of 3590 ..
=> if you run a 3070@37.5W VS a 3590@50W (ie 3/4 of the wattage), they have just about identical min efficiency.
It all depends on the price really.
If 3070s drop, by say, 25% in price : it would be cheaper to make a *more efficient* setup with 3070's than 3590, assuming you find the good driver combo of course,
for 200W :
7x 3070 BB @28.6W beats 4x CXB3590 @50W
and that's with more point sources too, good for you plants, and good for thermal dissipation along the heatsink.
just my 0.02
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EfficientWatt
Well-Known Member
You got the wrong cob with the wrong bin.
CXB3590 BB don't exist to my knowledge, and would be terrible in comparison to a CD, which is what I think you are looking for.
(CD is the top bon for cxb3590 in 3500K spectrum, BB is for 3070).
CXB3590 BB don't exist to my knowledge, and would be terrible in comparison to a CD, which is what I think you are looking for.
(CD is the top bon for cxb3590 in 3500K spectrum, BB is for 3070).
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Tim Fox
Well-Known Member
loaded question,
ttystikk
Well-Known Member
DB is the brand new bin, 1000 lumens/watt better than CD. Should be available just about anytime.
Just muddying the waters, lol
EfficientWatt
Well-Known Member
What's the source and word about the DB coming out part of your statement ?
lmgtfy.com/?q=2+step+3+step+rollitup
Top 2 results it gave me :
https://www.rollitup.org/t/diy-led-cree-cxa3070.789575/page-172
https://www.rollitup.org/t/diy-led-cree-cxa3070.789575/page-119
That's a really big jump ... like reaaally big
Check this neat trick :
lmgtfy.com/?q=2+step+3+step+rollitup
Top 2 results it gave me :
https://www.rollitup.org/t/diy-led-cree-cxa3070.789575/page-172
https://www.rollitup.org/t/diy-led-cree-cxa3070.789575/page-119
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ttystikk
Well-Known Member
Yes, I believe it's a jump from 13k lumens/watt to 14k. Between 8-9%.What's the source and word about the DB coming out part of your statement ?
That's a really big jump ... like reaaally big
Check this neat trick :
lmgtfy.com/?q=2+step+3+step+rollitup
Top 2 results it gave me :
https://www.rollitup.org/t/diy-led-cree-cxa3070.789575/page-172
https://www.rollitup.org/t/diy-led-cree-cxa3070.789575/page-119
And yes, it IS a big deal!
EfficientWatt
Well-Known Member
huhumm, I was just messing with you cause it's 1000 lumens more @ nominal current, not per watt
Airwalker16
Well-Known Member
I WISH it were per watt!huhumm, I was just messing with you cause it's 1000 lumens more @ nominal current, not per watt
ttystikk
Well-Known Member
I was just thinking about that and couldn't figure out why the numbers wouldn't square with each other.huhumm, I was just messing with you cause it's 1000 lumens more @ nominal current, not per watt
Thanks for the love lol
I didn't see how many diodes each have. Which page is it on?guys, don't forget: the datasheet explains everything