- Aerospace aluminum w/ Mil-Spec Anodizing - Suitable for all Picatinny rail mounts - 150 lumen LED white light - Momentary/Constant-On M720V rail switch (7 cable) - Momentary/Constant-On push button dome switch - Optically-coated tempered glass - Weatherproof: o-ring and gasket sealed - Powered by 2 CR123A batteries (not included)Specifications: Construction Output 150 Lumens / white light Battery (2x) CR123A batteries (not included) Modes Momentary / Constant Length 3.8 in Diameter 1.37 in Weight 9.6 oz Mount 20mm Picatinny rail mount Color TAN