You can switch to flower at any time at all. Just expect smaller yields the less time you spend in veg. You can even go to flower from seed if you wanted to. Many people, including myself at one point in time or another have done flower from seed/clone.Hate to bring up another topic but..... I need this thing out of my tent. I want to start my autos. Can someone let me know when it’s ok to flip to flower please. Also, for those that are interested, I got my light from DIY cob kits. I found him on here. Excellent customer service and very fair price. He even built the frame and assembled it as much as shipping would allow. Highly recommend him. I went from 2 viparspectra 600’s to this light and I love it!
I would however highly recommend that you resolve any current issues before you switch. Don't do more than one thing at a time when you've got a problem.