i have a similar question about "hardening off" someone mentioned this to me before but didnt think it would happen, i put 8 autogrowers in my window sil when its a nice sunny day for a few hours till the sun passes then i throw them back under my 45 watt LED panel where this all started. 2 of these 8 i put i assume are light shocked or whatever cuz they were all just perfectly fine, doing good in the sun in the window sil too and then now 2 of them are shrivlled up where the new leaves are coming in