Automatic Switching Mode

When Ful-full lenses are detected under UV rays, billions of photochromic factors inside the lenses start to change their structure to block UV rays away. This make lenses getting darker and switching to "Sunglasses Mode". After entering a room without UV rays, these factors start to switch into "Blue Filter Mode" and make lenses transparent, blocking harmful blue rays from digital devices.

One lens, two modes, no need to change your glasses between indoor and outdoor anymore!