The E2D Defender Ultra LED Flashlight Kit from B&H features the E2D LED Defender Ultra flashlight, a holster and a 2-pack of SureFire 123A batteries. Made of Mil-Spec anodized aluminum alloy, the flashlight body is strong, lightweight, and scratch resistant. Designed with personal defense in mind, the flashlight's 500 lumen output will overwhelm night-adapted vision to momentarily blind aggressors, and the crenellated Strike Bezel is intended as a last-line-of-defense for personal protection. Press the tailcap switch for momentary activation or click for constant-on. The Total Internal Reflection (TIR) lens produces a pre-focused beam that has a tight center cone of bright light, with a dimmer ring on the periphery. In addition to the batteries that come with the flashlight, two more are included to keep your light illuminated.