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Olight 38mm M20 Diffuser RGB Filter Adapter for Lights with 35-36mm Head Diameter


38mm Rubber Filter (Measured) for Olight M20 Flashlights OR for flashlights 35mm-36mm in head diameter (measured & tested to fit)


Beam Diffuser Converts the normal flashlight beam into a wide angle flood beam good for closes up work, wide area lighting, reading etc.

Red Filter used to preserve the eyes natural adjusted night vision, will disturb eyes the least of all colours which helps your eyes to stay adjusted for night conditions when map reading or navigating, use by aircraft personnel, military and hunters to avoid spooking game, deer and some other animals see very poorly in the red colour spectrum.

Blue Filter used with night vision equipment, produces less disturbing light, good for navigation or map reading as it show contour lines better than red. green also used hunting as it will not alert game and It's the brightest of all the colours for easier navigation and also makes it easier others to see you.

Green Filter 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.


Made of rugged TPU, these filters slip over the head of the flashlight and are available in red, green and blue colors as well as a white diffuser.  They are useful for navigating at night, hunting, law enforcement, and military applications, among others.  Red light is commonly used to help to preserve night vision and also reduces the probability of alerting game animals, which generally do not pick up red light as well.  While also difficult for animals to see, green light additionally helps people with enhanced visual acuity as our eyes are more receptive to green light.  Blue is often used by law enforcement to increase the visibility of sweat and blood, which also helps hunters with tracking animals.  The white diffuser provides softer area light.  Filters are available in different sizes to fit multiple Olight flashlights.