Nitecore 70mm Filter - Red, Green, White for 70mm Head Size Flashlights like Nitecore MH40GTR

Nitecore 70mm Filters for Nitecore MH40GTR Flashlight and other 70mm Head Flashlights

These Color Adapters filter through a strong color light, great for penetrating fog and smoke, and great for signaling.  Improve night-time visibility and avoid easy detection with these colored filter adapters.  Durable with an anti-roll design, they improve map reading, navigation, and tracking.

2 Colors Slip-on Filters available for the 70mm size: 
Nitecore NFR70: 70mm Red Filter 
Nitecore NFG70: 70mm Green Filter 
Nitecore NFD70: 70mm White Filter (for diffusion)
Fits all 70mm Head Flashlights of Brands including for Nitecore MH40GTR Flashlight and similar LED Flashlights

Red filter:  
The Red filter is great for penetrating fog and smoke, and ideal for signaling. Red is also ideal when you want to preserve your night vision. Hunters use the red filter to avoid disturbing animals during pre-dawn hours -- animals see poorly in the red color spectrum. The filter is also useful for close range, non-tactical applications -- such as map reading -- as it reduces the intensity of light output. 

For military operations; a red beam will always light the path ahead without jeopardizing night vision or strategic position. A red beam also perfectly illuminates star maps & lenses without affecting night vision. It won't attract insects. 

Green filter:  
The Green filter is ideal for hunting and hiking. The green filter provides the best visibility in a forest because it uses the lowest light intensity possible. And the green light will help hide your location when hunting in the forest. 

Green light won't attract insects, and is the go-to beam color for fishing as fishes are attracted to green light and it preserves your night vision during pre-dawn fishing hours. Green Filter is useful for map reading, hunting to avoid spooking game, tactical applications, blue provides a little more light for easier viewing or navigation over red filters.