Duracell Durabeam Ultra High Intensity 1000 Lumens LED Flashlight with Zoom Focus, 4 C Duracell Batteries Included also with 4 AA to C battery adapters enable you to use low cost AA Alkaline battery Weather resistant durable black casing, 380 meter light exposure, 1 meter drop tested Slide to adjust the zoom focus, Strobe setting for emergency signals 4 AA to C adapters enable you to use low cost AA Alkaline (do not use rechargeable battery)