Heatsinking LED Stars

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Heatsinking LED Stars

Postby tosborn » 09 Apr 2011, 22:46

For those of you who have constructed LED lighting using the Cree Q5's....how have you gone about heatsinking the stars? For example, what have you attached the stars to (e.g. aluminum bars) and how have you actually attached them? I see available 1)arctic silver thermal compound, 2)arctic silver premium thermal adhesive, 3) arctic alumina premium thermal adhesive, and thermal tape. If you use one of the adhesives or tape instead of the compound, is that a strong enough connection or do you also have to use screws to hold the stars to the heatsink?

Thanks.
tosborn
 
Posts: 12
Joined: 29 Mar 2011, 18:49

Re: Heatsinking LED Stars

Postby Ryan_phx » 10 Apr 2011, 18:44

I used the tape, and it's very sticky--no problems at all with adhesion. As for the heat sink, I just used two 12" x 1" x 1/8" aluminum bars, with 2 Crees attached to each. I have pictures in my build thread.
Ryan_phx
 
Posts: 63
Joined: 29 Dec 2010, 14:51
Location: Sandusky, OH

Re: Heatsinking LED Stars

Postby hg1027 » 14 Apr 2011, 23:14

I just drilled holes through 1/16th angle aluminum at opposite sides and used #6 screws to clamp the stars down. I wanted to be able to remove them if I changed the light frame and since both parts are mostly flat, it seems to sink ok,
hg1027
 


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