Strobe. Water resistant. Impact resistant. CREE XP-G3 LED. Modes: Main Lamp-High (270 lumens, 5.5h runtime); Low (100 lumens, 16h runtime); Side Lamp white-High (60 lumens, 17h runtime); Low (30 lumens, 21h runtime); Side Lamp Red-High (3 lumens, 26h runtime). 81m beam distance. Elastic, breathable head strap. Multi-function hook. Integrated emergency whistle in headband buckle. Requires (3) AAA batteries (not included). Polymer construction. Color: Black. Boxed.