Change darkness and colour. These polarised photochromic lenses adapt to light changes, in intensity and colour, even inside a vehicle.
1. In weak light on a cloudy day, they are greenish yellow for brightness.
2. In sunny conditions in the car, they change to copper brown to control light intensity and prevent glare.
3. Under full sun outdoors, they turn reddish brown to filter out excess light and provide maximum protection against glare and UV rays.