What Options do I have????

I need to keep my 40" mother in veg and no longer have room in my 4x4 tent because how tall it got... What light can I get without needing a ballast/im thinking flourscent, to keep this thing in veg.... Wouldnt a T12 hung long ways down the wall the entire length of my plant work at 18/6? I need a cost efficient way to keep her around. Soem have said to crop it 12 inches but I really would like to keep this mom till summer and put it outdoors to really see it shoot up..... any ideas would help... Thanks

Man you got along ways til summer, fall is just starting. Id just keep it under cool F.L. bulbs until your ready to bud. The only way ur gona be able to keep it at a manageable size and keep it in veg is to keep cutting it back (top it). IDK mayb someone else on here could give you some better options