1. The best transmittance of lenses on a sunny day: 5% -20%. The lenses are mostly dark colored, such as black, dark gray, bronze, dark red, etc
2. Cloudy and cloudy days: 25% -55%, with mostly light colored lenses, such as orange, turquoise, rose, amber, etc
3. Night time: 65% -95%, with lenses mostly in bright colors such as bright pink, bright yellow, etc