No struggle filters
"These colored filters work fine for their intended purposes. But what I like best is the soft rubble body that does not lock/stick on the flashlight and make removal a nasty job. Excellent design."







These Nitecore 25.4mm filters convert the focused high-output beam of a normal Nitecore flashlight into a soft, wide angle, diffused flood beam. The Nitecore accessories are great for close-up and low-light applications, such as wide area lighting, short distance reading, camping, hunting and much more! The 25.4mm filters are made from high-grade plastic materials and are therefore resistant to extreme temperatures and strong impacts. These accessories are available in the following colors/options: red, green, blue and a diffuser attachment. The 25.4mm diffuser is ideally meant for cycling, reading or for close-range illumination.
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.
Blue filters are often used by hunters to track wounded game at night because blood stands out more distinctly against foliage when viewed under blue light.
Green filters, on the other hand, are ideal for fishermen because it is a very soft light that will not alert the game; however green lighting is brighter than all the other colors, which makes it easier for navigation. Green lighting also makes it easier for others to see you.
| Brand | Nitecore |
| SKU | NITECORE-NFB25 |
| Series | E (Explorer), MH (Multi-Task Hybrid), MT (Multi-Task) |
| UPC | 6952506490516 |
| Batteries Included? | No |
| Weight | 0.4 oz (11 g) |
| Certifications/Standards | ANSI |
| Warranty |
Nitecore 1 Year Warranty Battery Junction Warranty |
| Return Policy | Return Policy |
Overall rating: 5.0 / 5 from 18 reviews.
Review topics: ["fit","light","output","price","use","filter","diffuser","works","ground","loss"].
"These colored filters work fine for their intended purposes. But what I like best is the soft rubble body that does not lock/stick on the flashlight and make removal a nasty job. Excellent design."
"These diffusers are most definitely some of the best when it comes to light distribution, still maintaining quite a bit of your throw ( im referring to your flashlight shining at least a good 300 meters plus before you throw on the diffuser cap ) and of course there made by Nitecore."
"I got these filters in red and diffuser. They fit a few of my Nitecores as well as several other brand flashlights I have. Battery junction had the best price I could find as well."
"Works just fine with many different flashlights, as long as your flaslight is the same or close to the filters diameter. It fits great for ones it's designed for & others a bit loose. Easily tightened with some electrical tape. Love the red for reading something at night, as it's easier on the eyes. Red light is harder for people to see also."
"Fits perfectly not only on my Nitecore, but my flight also. Purchased these for tactical use and I have zero complaints."
"I'm new to using filters but these do a nice job of shading light. When I figure out what I'm supposed to do with these I may come back to revise review."
"The Nitecore Red Filter helps to preserve your night vision while aiding you to move around in the darkness. Good for your safety and performance."
"I have purchased 3 of these, one green, red and blue. They all fit quite well and will not shake off no matter how hard you try. Even substantial recoil or dropping it will not make them come loose."
"Took a while to search and find these Nitecore Filters. Started first with the 23mm which I used with a Ranger Band for a Fenix E15 Light, but when I purchased Sunwayman's C10R's for gifts, I quickly checked for 25. 4mm filters from Nitecore, and was happy to find these for quick and effective use with the 1' diameter bezel of the Sunwayman C10R's. Filters also attenuate the output, of course, as well as diffusing the output, but the color filters are effective in providing good low and medium levels of output for night time camp ground uses and trail navigation. The Nitecore filter body is made with an adequately flexible housing that will stretch from perhaps 25mm to 26mm, so these will fit such bezel diameters."
"Bought a number of these, Red, Green, and Blue, for accessory gifts to accompany Sunwayman C10R flashlights given for Christmas 2016. The body of the Nitecore NF's is a flexible silicone rubber that provides both give and cling when fit to lights with bezel diameters of 'about' 1' (25. 4mm). Many lights fall in this category, making these filters quite useful. In fact I use the NFG23 (23mm) with a Fenix E15, whose bezel diameter is 22mm. . . if the fit is a bit too loose for your comfort, snapping a small rubber band around the bezel adds an extra mm or so. Fit of the NFx25's to the C10R's was perfect. Light attenuation is to be expected, after all, the filter allows only that desired portion of the light spectral distribution of light produced by the 'white' LED through, so much of the output can be blocked."
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