The Fenix PD22UE (Ultimate Edition) Flashlight is a limited production product that was created with the EDC (everyday carry) consumer in mind. This tiny flashlight is the first product we utilized the innovative Cree XP-L LED. The flashlight produces a max 400 lumen output on the common CR123A battery (510 lumens on 16340 rechargeable Li-ion battery) and can produce an amazing 427ft beam distance on max setting. The tail cap switch provides momentary-on function while the side switch on the head helps you decide between it’s 4 brightness levels and 2 strobes (SOS, variable strobe).