The Twilights Elite and Twilights Fitovers are a result of customer feedback (saying that the original Twilights Classics were “too dark”). Though the intention was and still is to dim the lights so that you can fall and stay asleep, we wanted to make sure that people weren't tripping all over their house! So, we did additional research and testing that allowed us to find a balance that lets in more yellow, orange, red and infrared wavelengths – which provides more light – while still blocking the most harmful ranges of junk light. Our research shows that this slight adjustment in our proprietary filtering does not significantly reduce their potency. In fact, it makes it a little easier to see and not trip over things on the floor (like your kids’ toys, the dog, etc.) They are just as effective as the original … just with improved visibility!