DIY Passive cooling with PIN Heatsinks SST120 and SST140

coreywebster

coreywebster

Well-Known Member
optzulu said:
pretty hard to find a passive heatsink for 37.5watt for 5€ Ofc when you run them all alone you get better spread.
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Its not, there are plenty of pin heat sinks available. I may have not calculated mine to the exact standard these guys have on some of theirs and I realise you would want to be exact. I got some 70mm x 70mm x 30 or 35 (don't have tape measure in front of me sry) they were $3.9 each, I worked out that they should be good for about 46watts but rounded it down to 40 to be safe. But even if I were wrong the same company and many others offer the same style in many many sizes. Pre drilled if needed.
 
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robincnn

robincnn

Well-Known Member
The Bender & Wirth 449 COB holder and Khatod Optics will be available on website by tomorrow.

Citizen CLU058 1825 3500K 80 and 90 CRI will be available next week. However I do not have any heatsinks pre tapped for CLU058.

Citizen CLU048 1812 3500K 80 and 90 CRI will be available in 2-3 weeks. 105mm and 120mm heatsinks have an option that is compatible with CLU048 with BJB and Ideal.


CXB 3590 with thermal pad on Bender & Wirth 449 holder.
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Min power
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max power
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Khatod optics offer a very even coverage. Some charts here.
https://www.rollitup.org/t/lens-and-reflector-optics-for-cob.893660/page-11#post-12727437

Will hook up 4 of these on a HLG 320 2100 to make my next lamp... TITAN
 
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CoB_nUt

CoB_nUt

Well-Known Member
Very nice @robincnn. Dammit just when i thought I had a grasp on things. You guys come up with more "stuff" to add to my light. Looks like i have to go to Diy cob school and catch up on these latest new additions. I do have a few questions for those of you whome choose to answer.
1) How much ppf/d do I have running 4xcxb 3070 @1400ma and 4xcxb3590's @ the same ma's? (4x4 tent)
2) I plan on adding 4 more cxb 3590's @1400 ma. what would my ppf/d #'s be? (same 4x4 tent)
3) when I do add the othe 4 cxb's ,I plan on replacing the 3070 bar with and making a 5 light bar similiar to the one ine Growmau5's latest cutter kit build with the five chips.
So, two 4x3590 bars at 1400 ma and one H- style light with 5 3070's in the middle....... Should i drive the 3070's on a 250 watt 1400 ma driver or 1050? Is 1050 ma the new "golden" amperage? I am seeing a lot of reference to it.
4) I have two 1400 ma meanwells pushing the two bars now. Any suggestions on how I should drive the 5 3070's? Any suggestions good or not so good are appreciated :).
 
Airwalker16

Airwalker16

Well-Known Member
robincnn said:
The Bender & Wirth 449 COB holder and Khatod Optics will be available on website by tomorrow.

Citizen CLU058 1825 3500K 80 and 90 CRI will be available next week. However I do not have any heatsinks pre tapped for CLU058.

Citizen CLU048 1812 3500K 80 and 90 CRI will be available in 2-3 weeks. 105mm and 120mm heatsinks have an option that is compatible with CLU048 with BJB and Ideal.


CXB 3590 with thermal pad on Bender & Wirth 449 holder.
View attachment 3726717

View attachment 3726718

Min power
View attachment 3726719

max power
View attachment 3726720

Khatod optics offer a very even coverage. Some charts here.
https://www.rollitup.org/t/lens-and-reflector-optics-for-cob.893660/page-11#post-12727437

Will hook up 4 of these on a HLG 320 2100 to make my next lamp... TITAN
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Damn that's like a sheet of cardboard and metal foil!? So there's no limit in power with those cause your soldering right to cob pads? I can't tell if that's like a crimp that's on top you crimp a stripped wire on or what? Mind showing some pics of the cob holder so I can understand it? Does it hAve an ampere limit? Or voltage?
 
Airwalker16

Airwalker16

Well-Known Member
CoB_nUt said:
Very nice @robincnn. Dammit just when i thought I had a grasp on things. You guys come up with more "stuff" to add to my light. Looks like i have to go to Diy cob school and catch up on these latest new additions. I do have a few questions for those of you whome choose to answer.
1) How much ppf/d do I have running 4xcxb 3070 @1400ma and 4xcxb3590's @ the same ma's? (4x4 tent)
2) I plan on adding 4 more cxb 3590's @1400 ma. what would my ppf/d #'s be? (same 4x4 tent)
3) when I do add the othe 4 cxb's ,I plan on replacing the 3070 bar with and making a 5 light bar similiar to the one ine Growmau5's latest cutter kit build with the five chips.
So, two 4x3590 bars at 1400 ma and one H- style light with 5 3070's in the middle....... Should i drive the 3070's on a 250 watt 1400 ma driver or 1050? Is 1050 ma the new "golden" amperage? I am seeing a lot of reference to it.
4) I have two 1400 ma meanwells pushing the two bars now. Any suggestions on how I should drive the 5 3070's? Any suggestions good or not so good are appreciated :).
Click to expand...
Always go High as possible on amperage so you can just dim to whatever you want. You can always go down with a dimmer, but you can't go up if you don't get the amperage in the first place. I'd use a 320h-c2100b
 
JorgeGonzales

JorgeGonzales

Well-Known Member
Airwalker16 said:
Damn that's like a sheet of cardboard and metal foil!? So there's no limit in power with those cause your soldering right to cob pads? I can't tell if that's like a crimp that's on top you crimp a stripped wire on or what? Mind showing some pics of the cob holder so I can understand it? Does it hAve an ampere limit? Or voltage?
Click to expand...
The leads are soldered to the holder.

BTW, that's a really slick looking combo @robincnn
 
robincnn

robincnn

Well-Known Member
Airwalker16 said:
Damn that's like a sheet of cardboard and metal foil!? So there's no limit in power with those cause your soldering right to cob pads? I can't tell if that's like a crimp that's on top you crimp a stripped wire on or what? Mind showing some pics of the cob holder so I can understand it? Does it hAve an ampere limit? Or voltage?
Click to expand...
Holder comes with 20 AWG wires... pre-wired. Scroll up and see the photo.
5A 150V rating,
 
robincnn

robincnn

Well-Known Member
CoB_nUt said:
Very nice @robincnn. Dammit just when i thought I had a grasp on things. You guys come up with more "stuff" to add to my light. Looks like i have to go to Diy cob school and catch up on these latest new additions. I do have a few questions for those of you whome choose to answer.
1) How much ppf/d do I have running 4xcxb 3070 @1400ma and 4xcxb3590's @ the same ma's? (4x4 tent)
2) I plan on adding 4 more cxb 3590's @1400 ma. what would my ppf/d #'s be? (same 4x4 tent)
3) when I do add the othe 4 cxb's ,I plan on replacing the 3070 bar with and making a 5 light bar similiar to the one ine Growmau5's latest cutter kit build with the five chips.
So, two 4x3590 bars at 1400 ma and one H- style light with 5 3070's in the middle....... Should i drive the 3070's on a 250 watt 1400 ma driver or 1050? Is 1050 ma the new "golden" amperage? I am seeing a lot of reference to it.
4) I have two 1400 ma meanwells pushing the two bars now. Any suggestions on how I should drive the 5 3070's? Any suggestions good or not so good are appreciated :).
Click to expand...
Will run some numbers for you tomorrow.
 
Malocan

Malocan

Well-Known Member
Hello Robincnn,
nice holders, could you tell please how the the new cob holder fit under the lens? i post 2 pictures, does it fit like on picture 1 or more like the 2nd picture? Does the square cob holder fill the whole square in the lens? sorry for my bad english, i hope you understand my question:/
 

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Growmau5

Growmau5

Well-Known Member
Dear Robin, I am glad to see you back posting here and starting a presence on Instagram. I am sure you have been extremely busy taking NGL to the next level, and it appears you have achieved that with these new offerings.

Just place my first NGL order. !!! I did not see the Bender & wirth holders up quite yet. But I need 3 of them if you could sell me those and include in the shipping box with the heatsinks.

PS. I know you will be busy shipping out all this new inventory, so just be sure to ship mine out before all these other nerds, lololol

northern GL.png
 
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