I have light sensitivity and have window film and black out panels on all my windows. However, the light panels had a weird plastic like film on the back that if it got wet it would peel off and attach to the window. The Eclipse panels are superior, had no weird smell like the less expensive panels did, and block out the light much better. My bedroom looks like a cave even in the middle of the day and is perfect for sleeping off migraines. Thanks Eclipse for making an awesome panel!