building my first COB 3590 setup. please help

J

jaa soo

Member
i need help! please

im doing a 5x10x8h tent
im moving to COB, been doing my homework and i see is time.
but i see people talking about better then COB CREE CXB3590 for better price.
plus i need help for my shopping cart, to make sure i buy the rite stuff to put it together

4) HLG-320-C1050B
32) CXB3590 3500K CD BIN (8 COB for each driver)
32) SST120 Passive Heatsink (can I use SST105 Passive Heatsink?)
32) CREE 3590 LED holder, Ideal 50-2303CR
20) LED glass lens. this is for the COBs around the edge, i see they have 40 degree or 60. anyways what COB glass lens can i use on this SST heatsink? or what other heatsink can i use? i wan passive heatsinks and able to use Glass lens.

please let me know what u guys think, this is just the binning of the shopping cart.
Do everything come together good?

Thank you!! i could add pic, video, ect in the future
 
CobKits

CobKits

Well-Known Member
crees are good cobs and are about $35-$40 a chip

if you use a citizen 1818 or vero 29 v7 36V or 50V you'll be in the same performance range as the cree for $22-$24

or if you spent the same $35-$40 you could get into the next class of chips above the cxb (citi 1825, vero 29 v7 72V)

talk to robin at northern about lenses
 
bassman999

bassman999

Well-Known Member
SST120 Passive Heatsink (can I use SST105 Passive Heatsink?)

Those holders are rated to mount with pre drilled holes to the HS's you mentioned as are the lenses.
Since the lenses are edges I thik the 60* are good, unless you have no walls then 40* might be better, but would worry about intense light with that narrow beam, Others would lnow better than me with that aspect though

That should work as they are rated 30-50 watts and you will be running 40 watts each at close to 60% efficiency meaning 16 watts heat per cob, but I would make sure to have airflow toward heatsinks anyway
 
Evil-Mobo

Evil-Mobo

Well-Known Member
jaa soo said:
i need help! please

im doing a 5x10x8h tent
im moving to COB, been doing my homework and i see is time.
but i see people talking about better then COB CREE CXB3590 for better price.
plus i need help for my shopping cart, to make sure i buy the rite stuff to put it together

4) HLG-320-C1050B
32) CXB3590 3500K CD BIN (8 COB for each driver)
32) SST120 Passive Heatsink (can I use SST105 Passive Heatsink?)
32) CREE 3590 LED holder, Ideal 50-2303CR
20) LED glass lens. this is for the COBs around the edge, i see they have 40 degree or 60. anyways what COB glass lens can i use on this SST heatsink? or what other heatsink can i use? i wan passive heatsinks and able to use Glass lens.

please let me know what u guys think, this is just the binning of the shopping cart.
Do everything come together good?

Thank you!! i could add pic, video, ect in the future
Click to expand...

I think you could run your COB's harder and use less heat sinks drivers etc and cover the same area and this would save you $$............
 
J

jaa soo

Member
CobKits said:
crees are good cobs and are about $35-$40 a chip

if you use a citizen 1818 or vero 29 v7 36V or 50V you'll be in the same performance range as the cree for $22-$24

or if you spent the same $35-$40 you could get into the next class of chips above the cxb (citi 1825, vero 29 v7 72V)

talk to robin at northern about lenses
Click to expand...
i only been doing my homework with cree CXB, i dont really know about any other ships.
so may i ask u, do the other brand work in a similar way? like the installation and matching with drivers?
 
CobKits

CobKits

Well-Known Member
yeah same deal for the most part
different holder and reflector options for each

so if you subbed a 50v chip youd just use a hlg-320-700mA driver instead of 1050 mA
(~50V x 700 mA is about equal in total power to ~36V at 1050 mA)
 
J

jaa soo

Member
bassman999 said:
SST120 Passive Heatsink (can I use SST105 Passive Heatsink?)

Those holders are rated to mount with pre drilled holes to the HS's you mentioned as are the lenses.
Since the lenses are edges I thik the 60* are good, unless you have no walls then 40* might be better, but would worry about intense light with that narrow beam, Others would lnow better than me with that aspect though

That should work as they are rated 30-50 watts and you will be running 40 watts each at close to 60% efficiency meaning 16 watts heat per cob, but I would make sure to have airflow toward heatsinks anyway
Click to expand...
Thank you,
so im good to use SST105 if i wish?

im interested to know about @Evil-Mobo info on better use
 
CryBby247

CryBby247

Active Member
Here's some golden advice whatcha do is look at all the lights being advertised on this site like ecosunlite and houyi go green etc then cross check prices on eBay or alibaba and you pick the cheapest one
They all will work the same since they are all using the same leds
Then kick your feet up turn on the tv and drink a beer
 
Evil-Mobo

Evil-Mobo

Well-Known Member
jaa soo said:
interesting, wanna know more, please how?

i understand more ma(current) more yild, rite?
Click to expand...
Example- My current build is:

(4) CXB 3590 80 CRI 3000K
(1) HLG 320-C2100B
(4) 140mm pin heat sinks
(4) COB holders
(4) Khatod Silicone Lenses

I am currently lighting a 3x3 tent with it with no issue, most other guys around here want 8-12 COB's in the same place and drive them softer, if using pin heat sinks this drives up cost a lot. You do the same build in bar style configuration and build about 4 -5 of these bars and you're only using 16-20 COB's that savings adds up. Less drivers too.

This is why I went the route I did for mine.

IMG_20160909_213008.jpg
 
CobKits

CobKits

Well-Known Member
jaa soo said:
and how do i fine out the COB "W"?
Click to expand...
W = "watts"

watts = volts x amps

a 36v cree @1050 mA = 36*1.05 = 37.8W*

a 50V vero or citizen = 50V x 0.7A = 35W*

*not exactly, cob voltage varies with current. at the currents listed above the cree is 34V, the citi is 49V, the vero is 48.5V
 
J

jaa soo

Member
Evil-Mobo said:
Example- My current build is:

(4) CXB 3590 80 CRI 3000K
(1) HLG 320-C2100B
(4) 140mm pin heat sinks
(4) COB holders
(4) Khatod Silicone Lenses

I am currently lighting a 3x3 tent with it with no issue, most other guys around here want 8-12 COB's in the same place and drive them softer, if using pin heat sinks this drives up cost a lot. You do the same build in bar style configuration and build about 4 -5 of these bars and you're only using 16-20 COB's that savings adds up. Less drivers too.

This is why I went the route I did for mine.

View attachment 3795792
Click to expand...
i understand u using 320-c2100b witch i understand you taking out more ma(current) but with 4 COB.
Im thinking about 320-c1050b. do 8 COB more even light on lines of 4.
like @growmau5
 
Evil-Mobo

Evil-Mobo

Well-Known Member
jaa soo said:
i understand u using 320-c2100b witch i understand you taking out more ma(current) but with 4 COB.
Im thinking about 320-c1050b. do 8 COB more even light on lines of 4.
like @growmau5
Click to expand...
And there's nothing wrong with that. Different ways to accomplish the same thing. I already explained why I went my route, keep cost lower.

Good luck on your build!
 
J

jaa soo

Member
Evil-Mobo said:
And there's nothing wrong with that. Different ways to accomplish the same thing. I already explained why I went my route, keep cost lower.

Good luck on your build!
Click to expand...
bro thank you, i am going to keep it on my list.
look nice on ur set up, if i had the same space i would have done the same.
 
You must log in or register to reply here.
Top