Hi there! For the Ultimate Collection, you will have to go into Program Files (x86) -> Origin Games -> Sims 2 Ultimate Collection -> Double Deluxe -> Base -> TSData -> Res -> Lights. 🙂 Be sure to either backup the Maxis lighting (lighting.txt) or rename it to something else (like lighting-maxis.txt) before installing Spookymuffin’s mod. Once you add Spookymuffin’s file, rename it to lighting.txt or the game won’t recognize it. 🙂