Quote Originally Posted by MyMindIsGlowing
"so far they have had jus normal sunlight"
Oh shit! I'm lame Thanks!

Please, excuse my stupidity.

I would put them under than HPS really soon. Sunlight is the best way to go but only if the whole plants life will be done under it. Giving your plant the really good stuff(the sun), then moving them under artificial light(Hps), will send it into slight shock. They won't like it at first, but they'll adjust. Just don't let your plants get too much of a good thing. Good luck.