Indeed. Nor does red light mess as much with animal (incl. human) physiology and behaviour and waking cued by white/blue/daylight. Potential small (safety?) do

Indeed. Nor does red light mess as much with animal (incl. human) physiology and behaviour and waking cued by white/blue/daylight. Potential small (safety?) downside: red light illumination does greatly reduce colour discrimination at night versus white light.