Made with polycarbonate body, lens and shroud. Features ultra-compact and lightweight design, provides 33-lumens and up to 40 hours of run time. Offers multiple modes including high, low and flashing. Includes cloth and rubber head straps as well as center mount adhesive helmet clip. Class I, Division 1 certified. Powered by (3) AAA alkaline batteries (included). Lifetime warranty. 2.25" Length.