The Nitecore NFD40 filter is an accessory that will make your flashlight ideal for nighttime activities, such as night detection, fishing, or reading.

The filter is surrounded by a rubber silicone frame, which ensures excellent protection for your flashlight's lens.

It is easy to install, and the integrated ring offers convenient storage capability, as a neck strap can be attached so you never lose your filter.

It is compatible with flashlight models that have a diameter of 40 mm.