OscarLaGrouch
Well-Known Member
I wouldn't know. I use 1000s HPS for 12/12 and then I use a T5 for three hours on each end of the 12 hours of HID light just to create a veg light cycle. I am not expecting the t5s to do anything other than make the plants think it is still springtime. I overlap them with the HPS to make sure no dark periods occur within the 18 hours. I'm relying on the HID bulbs to fill my scrog. other than that I use t5s in my nursery.