UltraFire 1600lm CREE XM-L T6 LED ZOOMABLE 18650 AAA Flashlight Torch Lamp A101 body of this flashlight is built of high quality aluminum alloy,and it has a very solid construction Excellent waterproof, suitable for outdoor environment, adverse weather conditions Hard-Anodized finish; Anti-abrasive, free-scratch, shock-proof Power by: 1x 18650 3.6v/3.7v OR 3X AAA battery Adjustable focus range for different usage, stretching to adjust its focus.