Yeah, it's obvious that if you are growing outdoors you will have maximum root space and light. I never said you wouldn't yield more outdoors, but in your situation your plants will die in the 50 degree temperature.
If you don't beleive me, go germinate some seeds under that heat lamp of yours, and if it survives, then you can go plant it outdoors in the humid, wet, rainy, cold forest you have with little sunlight!
Then you can come back here and say, "DomsChron, I should have listened to your advise and not questioned you you were only trying to help."
I know you think you know more than us here with your heat lamp theroies and tin foil theroies and such, but we are only suggesting the things we suggest to help YOU!