Title of thread is misleading, I wasn't able to run 3k, at about 5 days into flower i realized it was too hot so It was flowered under only 2k and 1k mh for the last week.
photo credit goes to selfhemployed.
https://www.icmag.com/ic/showthread.php?t=185081
i can find you some 2-3 pound indoor plants grown with vertical bulbs if you need more proof...