Sounds crazy. But, can track lights cause me to do bad in school?

I recently got track lights in my room and I’ve been studying beneath them. I did a review sheet for a math test that was very easy. I got everything right on the review sheet. I got an 83 on the test. I studied for chemistry. Got a 74. My grades have been going down and the only thing that I’ve changed in my way of studying is the lighting in my room? Is it possible?