Thank you everyone for your kind comments. I kept them under different conditions so as to minimise my losses...used to kill every northiana I get...and I wanted to see which will do better. Good thing is, both plants are pitchering well.
I'll update again in time to come, if there is any difference in pitcher colour etc. So far, the one under T5 has larger slightly pitchers but the leaves are more yellow (not evident in the pics).