Im doing this at the moment under cool whites and the weather has now finally, mercifully may i add, gotten warmer. Anyways, I have started bringing them outside for a few hours a day to harden them up to the real sun, so as to not hurt them when they move under full days of blistering sun. I have always heard that its a good idea to do this, and im not taking any chances. Thought id add that in for you, best of luck cultivating the green love!!