Red light is useful for covert movement, because such light is less noticeable to potential foreign observers: security guards, casual passers-by and also to preserve the "night vision", it does not overexpose the retina during night operations, does not "kill" the vision, it takes less time for adaption in the darkness while red illumination. The facts are well-known by old-fashion photographers. It can be used during the night for signaling, reading maps and other tasks.
Brand Name: Nitecore
Available in stores
Красный цветной фильтр для фонарика Диаметр: 34mm
Производитель: Nitecore
Продается в магазинах
