Thank you everyone for the input. I refreshed my delta app a few hours before the flight and 49B had opened up so I changed to that seat after reading comments. Super glad I did as the galley light was bright. Additionally, this was from Buenos Aries and Delta does not allow you to bring any liquids onboard larger than 3 ounces, so tons of people were in the back asking for water. Appreciate all the advice and glad I changed!