Nitecore 65mm Filter for the P30i Choose a Red or Green Filter The Nitecore filter converts the focused high-output beam of a normal Nitecore flashlight into a soft, wide angle, diffused flood beam. It is great for close-up and low-light applications, such as wide area lighting, short distance reading, camping, etc.Red light is used to preserve the eye's natural adjusted night vision; it will disturb eyes the least of all colors which helps your eyes to stay adjusted for night conditions. Red light provides great contrast and is not visible to the human eye over long distances. A green filter is ideal for hunters and fishermen because it is a very soft light that will not alert the game. However it is brighter than all the other colors, which makes it easier for navigation and it also makes it easier for others to see you.
