Quote Originally Posted by MisterE

I'd have kept with the MH because it's more blue spectrum light which is what you want for vegetating plants. You may find them stretching under the HPS.


I've never seen my plants stretch under my 250w HPS. the internodes are so close together that when they start secondary growth you can't even see the stalk. but, I have close grow quarters and get 8 or 9 thousand lumens per sq. foot. the best is mh and hps combined assuming heat is regulated