DIY LED/COB what do you use for the housing?

CPU heat sink and fan.
Thermal adhesive to stick it on and a dab of epoxy either corner to be sure.
Then just hang the heat sink with some wire from either side.
 
Bare is better if you can afford it.. if youre referring to the cooler passive and 5.88 over at heatsinks USA are the go to ones.
 
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