What equipment should be prioritized for visibility during night dives?

In low-light conditions such as night dives, visibility becomes a critical factor for safety and navigation. Luminescent gauges are designed to enhance visibility in dark environments. These gauges often feature materials that glow or are easily readable in low light, allowing divers to monitor their air supply, depth, and other important metrics without straining to see in the dark. This enhances diver safety by ensuring that vital information is readily visible.

The other options do not serve the same purpose. Standard pressure gauges are essential for monitoring air supply but lack any luminescent qualities, making them harder to read at night without additional light. Color-coded tanks may help in identifying different gas mixtures or tank ownership but do not assist in visibility once submerged in the dark. Reflective dive suits can enhance visibility to others above the water's surface but do not directly improve the diver's ability to see their instruments in low-light situations. Thus, when diving at night, prioritizing equipment like luminescent gauges can significantly contribute to a safer diving experience.