I haven't read blogs or videos on YouTube for a long time (except from people I know well; not MssOrchid for me, sorry)
Looking for information on “lights”, I have come across this site, I did not know it, and in addition to an interesting article I have seen a video, which I think it is very well explained.
I was the first person to link her site on OB, it's a relatively new site but it is the most extensive and accurate care guide I have come across so far.
That is why I have mentioned it a few times but I do not know her.