I switch from Metal Halide to Sodium just to get the right mix. it’s a switchable ballast. looks like there are sprouts on the hot pepper and some sprouting on the other pepper plant. haven’t done the seedlings yet. Do you know that plants seem to actually grow at night in the dark? I’ve noticed this last year.
Yeah , plant life is fascinating .
Check out the local library , or Amazon, for a book : "The Secret Life of Plants"
Plants respond to light, music, Wi-Fi, emotional feelings of nearby worker, electro-magnetic waves,length of darkness , etc.
Plants respond and grow best in full-spectrum light; however if you want flowering , you should introduce increased 'red light'.
I don't fully understand the physics or plant chemistry, but if it works,... dont change it .