The Polysteel 400R LED Flashlight is the first in the Polysteel line to add rechargeable capabilities to the mix. The flashlight is equipped with a Dual Power system that enables the light to run on either the custom rechargeable lithium-ion battery pack or standard alkaline batteries. The rechargeable battery pack also features a charging port that allows for the external charging of devices that standard USB inserts. The Polysteel 400R is waterproof, drop proof, and crush proof while possessing a Pure Beam Optics System with twist focus to make the light ultra durable and ready to weather any storm. With a stainless steel core and a poly outer, this light was put to the test, and it passed each one with style. With Coast’s commitment to quality, the Polysteel 400R Flashlight is impact resistant, waterproof and its LED is virtually unbreakable. The Polysteel 400R Flashlight is backed by Coast’s lifetime warranty against defects in materials and workmanship. Tested and rated to ANSI/FL1 standards.