I was skeptical and didn't expect it to do exactly what it says. I was wrong. It is worth it and more, tested in both sunlight and cloudy weather. It is perfect for all occasions and times of the day and night. It is an expensive visor, but it is worth it and you don't need to carry a second one with you to change it or get a helmet with a sunvisor, which has been deemed unsuitable and dangerous in case of an accident. One of the best purchases I have made.