a little bit early yet for starting the outdoor garden through most of the states. i can't start here until mid-may but have started in mid-april in warmer areas. but yes, you can move them outside but get them used to something closer to what's going on there. like gradually bring the lights down to 16/8 over a couple weeks and they'll be fine. once outdoors, be sure to give plenty of shade while they adjust to the sun or they'l burn. i put mine under trees and gradually work them out into full sun over a couple weeks.