If you order an Airbus you can select the color temperature of the internal lights. They differ from a very yellow warm color to a cool white. With these two files you can change it. The default is the cool white but personally we prefer the more yellow one. If you put the file in the fall-back folder(s): FSXMainFolder\SimObjects\Airplanes\Aerosoft Airbus X Extended Base\Texture_FallBack_A320 FSXMainFolder\SimObjects\Airplanes\Aerosoft Airbus X Extended Base\Texture_Fallback_A321 It will