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We will use this thermal adhesive to stick the heatsink (or heat pipe) to the lights boards: https://www.amazon.ca/MG-Chemicals-Thermally-Conductive-Adhesive-Fast/dp/B07D18R5Z5
We should potentially discuss this a little more since we probably want to be able to remove the lights boards without removing the heatsink.
Cree has amazing documentation on their lights and thermal performance and design in the pages linked on this page: https://www.cree.com/led-components/products/xlamp-leds-discrete/xlamp-xp-e2
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