Many months ago i was reading about as ya do and i came across this thread on the ICMAG forums ,basically there is a huge table of people with what Watt light they used, total yield and the grams per watt ratio , it makes a very interesting read!!! 5 pages with many many different diaries on them
so here is the link , i hope linking to outside sites is allowed
https://www.icmag.com/ic/showthread.php?t=211911