What is the color configuration for the lights when diving at night?

In night diving, the use of colored lights is crucial for visibility and safety. The standard configuration for dive lights is to use red and white colors. The primary purpose of having this color configuration—red for certain applications and white for general visibility—allows divers to maintain their night vision while also providing enough illumination for tasks.

Red lights are often utilized because they preserve the diver's night vision and reduce glare, which can be disorienting underwater. The white light, on the other hand, is typically used for illuminating areas when a brighter and clearer light is necessary, such as during dive briefings or when signaling to other divers.

This combination ensures that divers can navigate effectively while also maintaining awareness of their surroundings, enhancing safety during nighttime dives. Other combinations of colors like blue, yellow, and green do not meet the standard practices recognized for night diving, as they do not serve the same purposes or could potentially interfere with a diver's natural night vision.