Axion42
Well-Known Member
It can be used for both applications, if running with your lights if you have the correct ratio of deep red to far red (I believe 2:1), it's supposed to give your plants the emerson effect. I cant explain it but a quick google search can help you with that. There is also the end of day treatment like you mentioned, this supposedly puts the plants to sleep faster. Currently I'm only using far red for end of day.