One of the biggest reasons the peace lily is so popular and widely used is because they can be used in lower light levels. Fluorescent lights can provide enough light  and intensity  to produce beautiful houseplants as direct morning sun can.

Use caution when pacing the Spathiphyllum where it will receive direct western expoure. Hot, afternoon sun does have a tendency burn  those lush green leaves, and not burn turn theme to a lighter green with a yellowish cast. Filtered afternoon sun is fine.