Per the calculations in the document, we don’t need any crazy heatsinks. We should be able to get by with a simple pin style, black anodized, 2x2cm heatsink (ish).
Testing required.
We will use this thermal adhesive to stick the heatsink to the lights boards: https://www.amazon.ca/MG-Chemicals-Thermally-Conductive-Adhesive-Fast/dp/B07D18R5Z5
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
Some useful terms explained here: https://ctherm.com/products/tci_thermal_conductivity/helpful_links_tools/thermal_resistance_thermal_conductance/