Alegria Clip'N'Go 3-in-1 Blue Light Blockers are designed by quantum health experts to harmonize your circadian rhythm from day to night. This unique system includes three different lenses in one frame, allowing you to block the appropriate amount of artificial light based on the time of day. With these glasses, you can fall asleep at night without tossing and turning, wake up refreshed, and work online during the day without feeling drained. The magnetic clip-on system allows you to conveniently switch lenses, ensuring full-day protection from junk light. These glasses help improve sleep quality, alleviate headaches and eye fatigue, and make you feel more focused and productive during the day while reducing stress and anxiety at night.