Welcome back! We saved your shopping cart for you: View Cart

Nitecore 40mm Filters - Choose Red, Green, Blue or White Diffuser - Works with MH25, MH27, P16 & EA4

Nitecore NITECORE-NF40MM-OPT alternate view 1
Nitecore NITECORE-NF40MM-OPT alternate view 2
Click to Enlarge Image
Usually ships the next business day
Battery Junction Wholesale Account Signup
Battery Junction Free Keylight On Purchases Over $20 Promo

Nitecore 40mm Filters

These Nitecore filters are designed to fit over top of most flashlights with a 40mm bezel. The flashlight accessories give users the ability to alter a light's output to enhance its overall abilities. Fitted with a rubber frame, the 40mm flashlight filters are extremely durable and are resistant to both hot and cold temperatures, which makes them ideal for rigorous outdoor use. The lens itself is constructed from glass and features a coating on both sides for enhanced light transmission and added protection. Additionally, the lens may be removed to allow users to transform the attachment into a protective cover for his or her light's bezel. These Nitecore 40mm filters are available in 4 different colors: red, green, blue a white diffuser.

Red Filter

A red lens for flashlights gives users the ability to see at nighttime, without damaging their night vision. This is especially useful when reading maps.

Green Filter

A green filter, on the other hand, is perfect for hunters as the light does not disturb game. The green lens also have a brighter output than red filtering, so users can see more.

Blue Filter

Blue filters make red colors stand out and are therefore designed specifically for tracking the blood trail of an injured animal.

White Diffuser

Finally, the white diffuser lens converts a focused beam to a wide-angle beam that is ideal for close-up applications, including reading and photography.

  • Premium double-sided mineral-coated glass lens provides high light transmittance and excellent heat resistance
  • Filter frame is constructed from high quality rubber for extreme durability and impact resistance
  • Features a small lanyard attachment hole
  • With the lens removed the filter may be used as a bezel protector
  • Compatible with:
    • MH25
    • MH27
    • EA4
    • & Most Lights with a 40mm Bezel
5 Reviews
80% (4)
20% (1)
0% (0)
0% (0)
0% (0)
By Aaron
Columbus, OH
Even distribution of light.
April 7, 2020
These are great diffusers and they fit any flashlight just about with a 40mm size head on them, and the diffusers just about get rid of any rings or open spots like donut holes in the light pattern and work just as well with any of these high rated lumen lights like a couple thousand or so, its a very good oof blend of light without sacrificing way to much of throw.
By Eric
Palo Alto
Perfect for adding flood
January 29, 2019
I use these as an option on my Nitecore SRT7GT to give it more flood vs throw depending on my need. They work great and you only need the clear translucent diffuser. For the SRT7GT.

I highly recommend if you want to use your light for something other than a thrower it can be very helpful for scene lighting or mounted to helmet with lots of light options.

By Troy
League City, Texas
40 mm filter
July 30, 2017
Fits the Nitecore MH25GT Flashlight perfect!
By Randy
Good, but .....
December 1, 2015
Got this diffuser for my EA41. Absolutely nothing wrong with the quality of the item and it does a decent job, but the Olight model I got produces more of the effect I was looking for.
By Chris
Denver, Colorado
It does what it describes
June 14, 2015
Good for diffusing the lights beam to a flood mode and the rubber around the works as a bumper for drops. The white filter does come off for cleaning so it you can't break it off.
Related Items

Nitecore 40mm Filters - Choose Red, Green, Blue or White Diffuser - Works with MH25, MH27, P16 & EA4

  • $6.80
  • & Free Shipping On Orders Over $50
  • In Stock