Starting Columbine perennials from seed with a grow light, do I leave the light on 24/7?

Question

When starting Columbine perennials from seed indoors with a grow light, do I leave the light on 24/7 or turn off at night or periodically?

Answer 1

Generally, 12 hours per day is plenty. You can use a timer or turn them off manually every day.

https://www.gardeningknowhow.com/garden-how-to/propagation/seeds/do-seedling-plants-need-dark.htm