Linear focusing, spot to flood beam. Patented cam action focusing beam. Flush sealed rubber thumb button. White Star Krypton gas lamp. Triple action, self-cleaning internal switch. On, off and signaling switch capability. Anodized to prevent corrosion. O-ring sealed for maximum water resistance. Diamond knurled grip. Machined aluminum. Spare lamp inside tail cap. Serial numbered for identification. Black color. Batteries not included. A USA manufacturer.