3 watt bright CREE LED, 250 lumen max outputBezel mounted Mode Selector Ring. You can quickly switch between high and low intensity and strobe feature. Strobe flashlight feature will disorientate your target and extend battery lifeCustom two-way steel pocket clip, can be clipped onto clothing in either direction/orientationPush button rubber On/Off switchBlack anodized aluminum constructionUses 2 CR123A lithium type battery (Included)20mm weapon mount included