reflection

The reflection is the degree in which a surface reflects or scattered the light of a light source.
The reflection depends on the color, texture and nature of the surface. Light and smooth surfaces reflect the light more than dark and rough surfaces that can absorb or spread the light.
Effective reflection can help increase the illuminance in one room and thus save energy because fewer lights are required.
Inadequate reflection can lead to the light absorbed or scattered, which can lead to unwanted shadows and uneven lighting.