Features and Benefits:COAST XP18R is a RECHARGEABLE DUAL POWER product that provides the user the convenience and cost savings of COAST�s ZITHION-X™ rechargeable power source but can also operate on 6 X AA alkaline batteries (sold separately) so you are never without your light. Remove the rechargeable battery to plug in or charge it up with the battery still inside thanks to the integrated ProTek™ charging port and battery charging indicator. The XP18R flashlight not only features a medium, high, and low output modes but also COAST�s signature Turbo Mode for overpowered light.COAST XP18R flashlight delivers brightest-in-class light and four-mode, multi-beam capability powered by a COAST ZITHION-X™ rechargeable battery. This workhorse features a real-time power indicator plus patented slide-focusing optical technology that shines clean flood light and piercing spotlight with seamless transitions between. Carry ultra-bright light wherever you go. The COAST XP18R is a RECHARGEABLE DUAL POWER product that provides the user the convenience and cost savings of COAST�s ZITHION-X™ rechargeable power source but can also operate on 6 X AA alkaline batteries (sold separately) so you are never without your light. Remove the rechargeable battery to plug in or charge it up with the battery still inside thanks to the integrated ProTek™ charging port and battery charging indicator. The XP18R flashlight not only features a medium, high, and low output modes but also COAST�s signature Turbo Mode for overpowered light in critical situations. Brightest in class, this weather-proof, and dust-resistant flashlight is constructed of stainless steel and aluminum to fit a square in the palm for single-hand operation in the field. High-textured handle styling ensures a solid grip and increases comfort in the hand. A slide-focusing patented optic puts flood-to-spot beam-shaping capability right at your fingertips, plus the option to use the Beam Lock to set your beam just how you need it.