DIY Passive cooling with PIN Heatsinks SST120 and SST140

robincnn

robincnn

Well-Known Member
dabby duck said:
@robincnn
Would it be possible to run a Version 7 Vero 29 @ around 150 watts each?
4x in a 4x4' tent?
Do you happen to have a graph displaying the output efficiency at that wattage or have a link? I can't seem to find any info on the V7 chips, so many good graphs round here...!
Click to expand...
C type most efficient for 150 watts per cob
http://www.bridgelux.com/product-simulator
upload_2016-11-3_19-34-8.png


CobKits said:
next batch this month or next batch far off?
Click to expand...
Next batch in Jan. Depends on how soon this one sells out.
 
robincnn

robincnn

Well-Known Member
ThaiBaby1 said:
Hi Robin,
What driver do u suggest for these boards? Heatsinks from heatsink usa will be way too spensive, and i doubt baking sheets will be enough if u crank em up. Any other ideas?
Click to expand...

Heatsinks
The boards need 99V-108V depending on current.
For upto 40 watts no heatsink is required. 400ma drivers hard to find so 350ma and 35 watts.
If you bolt it down on wood then the board may be able to handle only 20 watts. If you attach it to a metal plate then may be upto 50 watts.

This heatsink USA profile suits the boards well. 1ft length per board and you can run 80 watts. Get an extra inch on each side and 100 watts per board.
upload_2016-11-3_19-43-25.png

Drivers
Stephenj37826 said:
HLG 150H C1400 2-4 boards works well
HLG 240H C2100 . 3-5 boards works well
HLG 320H C 2800. 4-6 boards works well.
Click to expand...
APC-35-350 for single board 35 watts
LPC-150-1400 180~305VAC for 150 watts on 1,2 or 3 boards
LPC-100-700 for 70 watts
GSC40B-350 for 35 watts - http://www.findchips.com/search/GSC40B-350
ELG-75-C700
ELG-150-C1400
ELG-240-C2100
ELG-200-C1750
HLG-80H-C700
HLG-120H-C1400
HLG-240H-C2100
HLG-320H-C2800

About 170lm/w at 100 watts per board
upload_2016-11-3_19-40-2.png
 
robincnn

robincnn

Well-Known Member
anomolies said:
was that bar build ever completed? I wanted to pick up 4 cobs + silicone lens from NGL, what brand do you guys recommend? (citizen / Vero)
Click to expand...
The current SST X is drilled for 100mm glass lens. Khatod SST X will be available around 19th. For Khatod Silicone lens i recommend Vero 29 Gen7.


Evil-Mobo said:
Are you recommending these for all stages of growth or just for veg?
How did these boards compare to the COB's, kinds looks like a naked Nexlight veg light lol..........
Click to expand...
Nice build pics. thanks for sharing
3000K 80 CRI. Veg and flowering both.
They may look like nextlight but these boards are latest Samsung 561C. Nextlight is a generation behind.
You can make your own nextlight style light with these boards. Yours will just be better than them.
 
T

ThaiBaby1

Well-Known Member
robincnn said:
Heatsinks
The boards need 99V-108V depending on current.
For upto 40 watts no heatsink is required. 400ma drivers hard to find so 350ma and 35 watts.
If you bolt it down on wood then the board may be able to handle only 20 watts. If you attach it to a metal plate then may be upto 50 watts.

This heatsink USA profile suits the boards well. 1ft length per board and you can run 80 watts. Get an extra inch on each side and 100 watts per board.
View attachment 3822063

Drivers

APC-35-350 for single board 35 watts
LPC-150-1400 180~305VAC for 150 watts on 1,2 or 3 boards
LPC-100-700 for 70 watts
GSC40B-350 for 35 watts - http://www.findchips.com/search/GSC40B-350
ELG-75-C700
ELG-150-C1400
ELG-240-C2100
ELG-200-C1750
HLG-80H-C700
HLG-120H-C1400
HLG-240H-C2100
HLG-320H-C2800

About 170lm/w at 100 watts per board
View attachment 3822062
Click to expand...
Thanks robin, left u a message on your site
 
robincnn

robincnn

Well-Known Member
ThaiBaby1 said:
can u give us the efficiency at different wattages? I.e, 80 50, etc.
Click to expand...
50 watts - 187.4lm/w
100 watts - 170 lm/w

Calculator here
http://www.samsung.com/global/business/led/support/tools/calculator-pkg

How to use the calculator
https://www.rollitup.org/t/diy-passive-cooling-with-pin-heatsinks-sst120-and-sst140.906729/page-33#post-13100993
ThaiBaby1 said:
Thanks robin, left u a message on your site
Click to expand...
Ok i will check right after the SST X vs 140mm testing.
 
T

ThaiBaby1

Well-Known Member
Evil-Mobo

Evil-Mobo

Well-Known Member
robincnn said:
The current SST X is drilled for 100mm glass lens. Khatod SST X will be available around 19th. For Khatod Silicone lens i recommend Vero 29 Gen7.



Nice build pics. thanks for sharing
3000K 80 CRI. Veg and flowering both.
They may look like nextlight but these boards are latest Samsung 561C. Nextlight is a generation behind.
You can make your own nextlight style light with these boards. Yours will just be better than them.
Click to expand...

Yeah right when I need to finish lighting the other half of my 5x9 you don't have the 140mm Pin sinks anymore so I have no clue what direction to take lol..........without those sinks I cannot build the same lights and with how delicate those pins can be I'm out on the splayed design I just can't see that lasting longterm if in shipping it doesn't come all banged up........................
 
dabby duck

dabby duck

Well-Known Member
Shugglet said:
Its possible, but is it practical to run 150w and try to passively cool it? Sounds like some sort of active cooling would be necessary at those currents. Bridgelux website has all the data sheets for the Vero 29s. But there are also 3 different versions of the gen 7 Vero remember.
Click to expand...
Thanks. I meant C Versions, as the other are less efficient.

I have all the datasheets, thats why I was asking...datasheets don't even have the LER to calculate, so.....

also passive sinks exists like these from CDI web
228 watts passive
https://www.cdiweb.com/ProductDetail/COOLBAYTERAB-MechaTronix/582155/




but I really want some like these...wish i could find them around 4-5000 grams worth :) :):)
copper splay.png
 
Last edited:
robincnn

robincnn

Well-Known Member
Evil-Mobo said:
Yeah right when I need to finish lighting the other half of my 5x9 you don't have the 140mm Pin sinks anymore so I have no clue what direction to take lol..........without those sinks I cannot build the same lights and with how delicate those pins can be I'm out on the splayed design I just can't see that lasting longterm if in shipping it doesn't come all banged up........................
Click to expand...
SST X comes in packing to avoid shipping damage.
upload_2016-11-3_21-55-37.png

The problem with splay design is the anodization does not look as good. does not have an impact on performance.
upload_2016-11-3_21-56-29.png
 
robincnn

robincnn

Well-Known Member
Evil-Mobo said:
How would these mount on angled aluminum? Would the Khatod lenses work? Can still run 3590's?
Click to expand...
mounting holes on 2 opposite side just like the old heatsinks.
Also 4 holes in front. Current stock is pre drilled for 100mm glass lens.
Khatod SST X coming in 2 weeks.


Danielson999 said:
5° @75wpc and 8°@105 sounds pretty considerable. Infact that's almost a beatdown.
Click to expand...
@The Dawg :hump:
 
You must log in or register to reply here.
Top