HELP why is she turning yellow?

I've had her for a week. She is about 12 in away from a grow light. I have not watered her since I brought her home as the soil is still showing wet.

Is it possibly too cold in my condo? The other day it was at 66°, which is the lowest it's ever been and I immediately turned the heat on (Usually my condo sits around 70 to 73°.)

It's an alocasia although I'm not sure which type.