A lightweight but strong aluminum module protects the optics, LED, and sophisticated electronics, minimizing length with side-by-side placement of the two lithium batteries that power the system. The module has a Mil-Spec hard anodized finish to protect against scratches, abrasion, and corrosion, while O-ring and gasket seals keep out moisture, dust, and debris. The slender forend body is made from extremely tough polymer and is textured for a secure hold and features large, tactile momentary and constant-on switching on both sides for precise control by left- and right-handed shooters. Virtually indestructible, two-output LED generates 600 lumens of blinding light on its max setting, and 200 lumens with nearly twice the runtime on high Precision reflector shapes a versatile beam with ample reach and surround light for close- to medium-range applications Switchingambidextrous momentary- and constant-on switches on both sides Output-mode-selector switch on left side|System-disable switch on forend bottom Slender, lightweight, high-impact polymer forend is textured for secure grip Mil-Spec hard-anodized aluminum body; coated, tempted window; O-ring & gasket seals for weatherproofing