The working distance is from the point of view of the user of the flashlight; the beam may be visible against a dark background for many times this distance, especially if the observer has night-vision equipment.
A light directly pointed at an observer may be visible against a dark background for many times this distance, especially if the observer has night-vision equipment. The working distance is from the point of view of the user of the flashlight.
The working distance is from the point of view of the user of the flashlight. A light directly pointed at an observer may be visible against a dark background for many times this distance, especially if the observer has night-vision equipment.
The working distance is from the point of view of the user of the flashlight. A light directly pointed at an observer may be visible against a dark background for many times this distance, especially if the observer has night-vision equipment.