We also understand your question. Everyone's habits are different. Therefore, products do not work the same way in different environments.
working principle:
- This product is made of translucent lenses with photochromic lenses. The glasses remain translucent when used under normal conditions (night, indoors). When glasses are used outdoors, they block and absorb harmful UV rays.
- Thanks to our multi-layer compound lenses, when the glasses absorb UV light, a black protective layer is formed on the outermost layer of the glasses, changing the color of the lenses. Therefore, the glasses do not trigger their protective mechanisms when UV light is weak or absent.
- So the color doesn't change. This is also the difference between our glasses and ordinary sunglasses.