Can you put a plant back into veg once it's gone to flower?

I have a male I want to preserve. He was in flower for a week plus and I want to put him back to veg. Can I put him back on 24 hr/600W and get my desired effect?

He will revert back to veg stage after a week or so of 24. He will grow a lot under a 600wt. If you just want to keep him but not use him for now, then keep him under a weaker light.

If you would have cloned him first I would say yes. However I have never reverted a flowering plant back to green so I can't give you a positive answer. Simply try it and find out. As the plant gets bigger prune the branches etc as you would any motherplant.