yoda954
Well-Known Member
Hi
I would like to know how did you put cob in your box for cutting
and reference the latter
Thank you
REALSTYLES 6th DIY CXA 3590 5000k DB bin
- Thread starter REALSTYLES
- Start date
I would like to know how did you put cob in your box for cutting
and reference the latter
Thank you
REALSTYLES
Well-Known Member
You can do it 10x12 but you will still need fans because my heat sinks are for active cooling
Sent from my SM-G900P using Rollitup mobile app
nvhak49
Well-Known Member
What do you mean, what kinda box are you talking about?
yoda954
Well-Known Member
hello
I also starts just like you
My question is one I understand well, you're used to 5000k (vegging, grow)
and 3500k for the stretch and 3000k for flowering?
I still does not understand that is why you used all 72v instead of 36v
thank's
probably until later
Fastslappy
Well-Known Member
just a suggestion here but :
when mounting multiple cob holders drilling precise & square is critical
why not make a drilling template / jig outta 1/4 flat stock even a hardwood would work
place the cob holder on stock clamp well even hot glue drill pilot holes then check that it lines up & boom
a fast way BUT accuret to set a line of cobs drill mount holes
templates are way easier to use over a center punch (which is fine for single use )
templates can be made cheap by anyone
when mounting multiple cob holders drilling precise & square is critical
why not make a drilling template / jig outta 1/4 flat stock even a hardwood would work
place the cob holder on stock clamp well even hot glue drill pilot holes then check that it lines up & boom
a fast way BUT accuret to set a line of cobs drill mount holes
templates are way easier to use over a center punch (which is fine for single use )
templates can be made cheap by anyone
Megalomando
Well-Known Member
@ Yoda
"I still does not understand that is why you used all 72v instead of 36v"
I'm not an authority in the least on these lights. I do know volts times amps = watts so a 36 volt COB will require twice the amps that a 72V COB requires to give the same watts. Either way, the power dissipation is exactly the same.
36V is 1/2 the volts as a 72V COB and you need a driver with twice as high of amps to run a 32V COB than you need for the 72V.
So to me, either COB requires and uses the same amount of power and has the same output and heat dissipation.
Maybe someone can jump in to say why 32V is better than 72V?
"I still does not understand that is why you used all 72v instead of 36v"
I'm not an authority in the least on these lights. I do know volts times amps = watts so a 36 volt COB will require twice the amps that a 72V COB requires to give the same watts. Either way, the power dissipation is exactly the same.
36V is 1/2 the volts as a 72V COB and you need a driver with twice as high of amps to run a 32V COB than you need for the 72V.
So to me, either COB requires and uses the same amount of power and has the same output and heat dissipation.
Maybe someone can jump in to say why 32V is better than 72V?
testiclees
Well-Known Member
I used 72v on my 3590 just because that was the best available bin at the time. I run em on hlg 120 700. Two to a driver with space for monos. If i read the chart correctly the driver is about 92% efficient used that way.
littlejacob
Well-Known Member
Bonjour
36v and 72v are the same...but if for a reason or another you want to run your cob real low it will be easier with 36v...it is ok to source good driver till 350mA but under it is not easy!
Except for that there is no reason to prefer one or the other!
CU
36v and 72v are the same...but if for a reason or another you want to run your cob real low it will be easier with 36v...it is ok to source good driver till 350mA but under it is not easy!
Except for that there is no reason to prefer one or the other!
CU
REALSTYLES
Well-Known Member
Each panel gets measured every time I make a light. The jig/ template idea is ok but it only takes a second to draw out the lines and doesn't require you to keep the template. You'd need a bunch of them because you are not gonna always make the same light. Like now I have a new light to make and I'm gonna do it differently.
Fastslappy
Well-Known Member
I was meaning a small block slightly larger than the size of the cob holder with the holes predrilled to match cob holder mounting holes .
then the template/small block can be placed anywhere the plan calls out on a heat sink & drill the mountings holes in seconds move block to next cob placement drill again , so forth. .
anyway you got your thing sorry didn't mean to annoy the pro , i return lurkin
then the template/small block can be placed anywhere the plan calls out on a heat sink & drill the mountings holes in seconds move block to next cob placement drill again , so forth. .
anyway you got your thing sorry didn't mean to annoy the pro , i return lurkin
littlejacob
Well-Known Member
Bonjour
Nice big hs....we want to see the back!
Did you choose a star shape because of the stars on both of your flags? Us and china hand in hand...lol! (It is more the hand of us in the china pocket...)
Is it in sale on kb?
How many watts? Is it some cxb 72V? @700mA?
How much for this one?
Well done @REALSTYLES
CU
Nice big hs....we want to see the back!
Did you choose a star shape because of the stars on both of your flags? Us and china hand in hand...lol! (It is more the hand of us in the china pocket...)
Is it in sale on kb?
How many watts? Is it some cxb 72V? @700mA?
How much for this one?
Well done @REALSTYLES
CU
REALSTYLES
Well-Known Member
He's using CPU heat sinks and the light was made by a member from here I think his name is scxott something or like that
littlejacob
Well-Known Member
Bonjour
Sorry I thought it was yours...
CU
Sorry I thought it was yours...
CU
REALSTYLES
Well-Known Member
I had a light that was up on the site
Budzbuddha
Well-Known Member
Jumping off the fuckin BLURPLE wagon finally and looking at a flowering panel build.
I am constructing a 36" panel running 6 cobs : Flowering 52" x 24" tent
Im thinking of 3000k ( CXA3590-0000-000R00BB30F-ND )
My question is : would it better to run ALL 3000k or Maybe 4 (3000k ) and 2 ( 2700k )
Or (3500)k
Just asking for your opinion.
Which is a good vendor - digikey ?
I am constructing a 36" panel running 6 cobs : Flowering 52" x 24" tent
Im thinking of 3000k ( CXA3590-0000-000R00BB30F-ND )
My question is : would it better to run ALL 3000k or Maybe 4 (3000k ) and 2 ( 2700k )
Or (3500)k
Just asking for your opinion.
Which is a good vendor - digikey ?
REALSTYLES
Well-Known Member
I use 3500k and http://kingbriteled.en.alibaba.com/ or http://www.cutter.com.au/ would be your best bet. I've bought from Kingbrite but haven't from cutter yet super low prices.
ttystikk
Well-Known Member
Consensus seems to be between 3000k, 3500k and 4000k for bloom. It's also widely agreed that there isn't a lot of difference in growth between them, and that the higher number seems to create more squat plants and the lower numbers a bit lankier ones.
