DIY kits now available from Timber!
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a mongo frog
Well-Known Member
Dude is Dan Rain sexy or what?
HydoDan
Well-Known Member
Good Businessman!!!
I manged to get a frame built! I needed easy as I'm not too handy, but hoped for something fairly sturdy with an open center so I could use an AgroMax Pure UV bulb from tent top center.
Along with bulk chain, screws, a little vise (that I returned) and hacksaw, I grabbed this:
1ea 8ft aluminium tube cut into four 24" pieces:
http://www.homedepot.com/p/Everbilt-1-in-x-96-in-Aluminum-Square-Tube-with-1-20-in-Thick-802537/204273939
4ea 3ft 3/4" aluminium angle cut to 30":
http://www.homedepot.com/p/Everbilt-3-4-in-x-36-in-Aluminum-Angle-Bar-with-1-16-in-Thick-801377/204273984
Not too shabby, it's a 30" x 24" to hold two 225w 3 light kits
Along with bulk chain, screws, a little vise (that I returned) and hacksaw, I grabbed this:
1ea 8ft aluminium tube cut into four 24" pieces:
http://www.homedepot.com/p/Everbilt-1-in-x-96-in-Aluminum-Square-Tube-with-1-20-in-Thick-802537/204273939
4ea 3ft 3/4" aluminium angle cut to 30":
http://www.homedepot.com/p/Everbilt-3-4-in-x-36-in-Aluminum-Angle-Bar-with-1-16-in-Thick-801377/204273984
Not too shabby, it's a 30" x 24" to hold two 225w 3 light kits
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Airwalker16
Well-Known Member
GN?
90mm or 100mm? Not sure but likely one..
popeyesailorman
Well-Known Member
Big smo
Well-Known Member
So 60watts at 80% efficiency?
popeyesailorman
Well-Known Member
Not sure what that # relates to. driver is >90% cobs are 50?? Pushed to 1.4 amps in stagnate air they get very warm. you can hold them but would startle you if you brush up against them.
popeyesailorman
Well-Known Member
The ones in the kits are 70mm tall so 73W at 80% is still only cooling 14.6w ???The 3590 run at 1.4 amp needs 23w cooling??
I run mine at 1 amp most of the time so only need 14.8w but no wonder they get so warm when I blast them.
I run mine at 1 amp most of the time so only need 14.8w but no wonder they get so warm when I blast them.
hornedfrog2000
Well-Known Member
Hmmmm, so the 200w kits heatsink is possibly undersized? What size would be better for the 200w kit?
coreywebster
Well-Known Member
Not sure what you all mean, the 200w kit is 4x 50w cobs isn't it? The 70mm high coolalliance offers 61-73w of power dissipation. Why wouldn't that be good enough for 50w of power?
hornedfrog2000
Well-Known Member
i honestly dont know. im just asking. id like to know if there is any reason to go bigger?
RainDan
Well-Known Member
Hi,
I wanted to answer the questions about the heat sink size and why we selected the ones we did for our kits.
The kits that are 50 Watts per COB use the Cooliance CPL10070 model heat sink which is 100 mm in diameter and 70 mm tall. The kits which are 75 watts per COB use the CPL14070 model heat sink which is 140 mm in diameter and 70 mm tall.
Here is the datasheet for the Cooliance pin cushion heat sinks:
http://www.cooliance.com/NA/Products/LED-Coolers/Generic/LED-Coolers-For-Other-Arrays.php
As you can see the heat sinks we selected fall well within the operating specifications. We worked extensively with the Cooliance engineering staff to select and custom machine the appropriate heat sinks for each kit.
These heat sinks will be warm to the touch - surface temps can hit 120°F and the pins register around 90°F at 50 Watts with a basic temperature gun.
If there are any additional questions about the components we use I would be happy to answer them.
Regards,
Dan
Greengenes707
Well-Known Member
120F?...so at 50w the cooliance 10070 is only running Tc=49c* and the pins =32c??
Is that your final answer?
Is that your final answer?
BM9AGS
Well-Known Member
seems accurate with my experience with the kits. hot to the touch if there's zero airflow but not painful hot and even a slight breeze and they're cool.