Brainart™ Men's Photochromic Sunglasses with Polarized Lens
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【NO MATTER DAY OR NIGHT, IT WORKS WELL】Our sunglasses are made of special photochromic polarized lenses. When driving at night or into a dark environment, the lenses are light-colored transparent to enhancing visibility while effectively reducing the glare. During the daytime, it can effectively filter the strong light, enhance the visual sharpness, reduce eyes fatigue, and keep the eyes always in the most comfortable state of outdoor activities.
Because some customers do not know how to test lens discoloration, we explain more to know how to test.
First:
Please put the sunglasses under the sunshine keeping 10-15 seconds, then it will change color darker. (Remember it is sunshine but not cloudy or rainy)
Second:
You can use UV light to test, the lens will darken.
Note:
Please know one thing, do not test discoloration in cloudy weather or indoor. The discoloration of the lens is caused by ultraviolet radiation.
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