... :Aerospace grade aluminum constructionReflector:High temperature processed, layers of alloy coating filmsGlass lens with aluminum textured/OP reflectorFinish: ... on and lock-on with over 50,000 times life cycle.O-ring sealed: Splash proofWeight without battery:146 ... Camping,Hunting) Home(Portable) ,Police( go on a tour of inspection for Security Guards , Arrest), Hospital,Travel,Earthquake,Military ...