Application: Ideal for walking the dog, nighttime running, bicycling, hiking, camping, fishing, reading, unloading the car, unplug some cords in a dark area. Product Description Adjustable beam focus Spot and flood beam are both available. Batteries 3 AAA Battery(required and included). Heavy Duty Aluminum Housing Scratch and fade resistant. Excellent appearance. Solid State Shockproof and vibration proof. Extremely long life White LED last over 50,000 hours.