We bought some T-8 replacement LED bulbs for our city hall and they were so much brighter than the old fluorescent bulbs. I wonder how that would affect growing seedlings. I also have six old T-12 shop lights and either will replace those shop lights with LED fixtures or will rebulb if LEDs ever are available in the T-12 size.
Do you still have bulb placement at about one inch above the plant? Any heat differences between LED and fluorescent?
