Scotopic lumens, in the context of the lighting industry, refer to the measurement of light output that takes into account the sensitivity of the human eye to both cone and rod photoreceptors. Unlike photopic lumens, which measure the sensitivity of our eyes under intense lighting conditions, scotopic lumens are associated with our ability to see in low light or weak light situations. The rods in our eyes are responsible for detecting this type of light and regulating the size of the pupil, which directly affects visual acuity for tasks.