Estimate the number of LED’s in that facility. The diodes themselves.
Uhm, a lot?
What source of info do you think is available for that estimate?
The farm uses 17,500 LED lights spread over 18 cultivation racks reaching 15 levels high.
http://www.gereports.com/post/91250246340/lettuce-see-the-future-japanese-farmer-builds
I guess that to be fixtures, not individual LED counts.