I have seen many times on this video that you don't have Kelvin values, well I have found long time a go that black body is used for that, but as we can't use nodes I replaced them with hex values. You Just have to copy them from this link and that's pretty much it :) Hope this works. http://www.vendian.org/mncharity/dir3/blackbody/
My only gripe is that the chart only goes to 29800 K -- far below the heat temperature of this tip 🤣