Night Vision is a ship function that highlights objects and terrain to make them more visible in low-light situations. It can be toggled in the Ship tab of the Systems panel.
Night Vision can be used both in space, and on or near the surfaces of planets or moons. When activated, it has an effective radius of approximately 35 kilometers around the ship.
The Night Vision modification adds a green visual overlay that highlights objects and details in dark areas. The function is identical to the Night Vision function built into ships, and can be toggled on and off as needed. When toggled on consumes energy. Though using a flashlight also consumes energy, it happens at a smaller rate, when using both Night Vision and flashlight simultaneously the consumption does sum.