The Coast Polysteel 500 Flashlight is impact resistant, waterproof and its LED is virtually unbreakable. The Polysteel 500 Flashlight is backed by Coast’s lifetime warranty against defects in materials and workmanship. This battery operated flashlight is waterproof, drop proof, and crush proof while possessing Coasts Pure Beam Optics System with twist focus to make the light ultra durable and ready to weather any storm. Tested and rated to ANSI/FL1 standards.