Yes, as other folk have already said.....but keep the hps a few feet away if they are very young seedlings.so this is my first post ever. im planning on starting a 150w hps closet grow. 1 plant lst. so my question is can i veg with the hps already on the 12 12 schedule if i keep my cfls on along with it 24/7. any thoughts or opinions would be helpfull.