The Cobber XL is our most popular headlamp. It comes with four useful settings: a high powered 110 lumen beam, an energy saver 65 lumen beam, a solid red beam for night vision, and a flashing red safety light. Additional features include: a water resistant exterior, an adjustable head strap for customizable comfort, and a 45 degree adjustable head. Uses three AAA alkaline batteries, which are included with your purchase! Like all our lights, we stand behind this product with our limited lifetime warranty.