I have a couple of cattleya that i keep indoor without any sunlight so i am using growlight. Have bought a big one.
I understand that cattleyas require 20-30k lux so I position my growlight 2 feet on top of them, and i use spectrometer to read 25k on them leaves. Question is one of their flowers above them are closer to the light and it read 40k lux. Will that be detrimental to the flowers?
I tried to place the growlight shining from the side but my eyes always catches the light.
Cattleyas love light. And plants that love light can't get too much of it, it's bordeline impossible (not quite, but almost). It's the sun they don't love, or to be more specific, heat radiating onto their tissue, causing burns. If your light doesn't emit a lot of heat, i doubt you'll have much to worry about.