Flourescent vs. MD (600) and 2 400 HPS?

I just transplanted clones from a cloner. Root length was about 1/4 inch. First time I've used a cloner. After transplanting how many days under fluorescent and when should the be moved under the 400's and 600? Or should it be right away but I would think that might stress the plants. Thanks in advance.


I meant 600 MH above!!