Fenix AD401 Diffuser for LD/PD Series lightsSometimes the beam from your flashlight is just too much trying to use in up close applications. Even using a low setting, the beam can be concentrated and doesn't light the immediate area. This diffuser fits onto your light and softens the beam. It is ideal for lighting a confined space, like the inside of a tent, a car, or the looking through the trunk. It also makes it possible to read a map or book, and provides more useful light during a power outage.It is made for the Fenix LD and PD series lights, but can be fitted to just about any flashlight or headlamp that has a 0.78" to 0.84" diameter head. When you need the full beam, you can easily flip the diffuser front up and leave it installed on the light.Features and Specifications: Made of durable plastic Easy to install Fits headlamps or flashlights with 20-21.5 mm diameter, such as: L1D, L1T, L2T, L2D, P2D, P3D, LD10, LD20, PD20, PD30, HP10 Please Note: This diffuser cannot be used with the LD15, LD25, LD40, or PD32.