The SLL XL Flashlight is super-bright using perfect beam technology to produce a wall of light.  We combined our knowledge and expertise in LED light bars to produce the Brightest and toughest Flashlights imaginable.  We use one 10 watt diode to produce beam of Daylight. We use the highest grade rechargeable lithium batteries to power all the SLL Flashlight lineup.  Thus giving us extreme run times combined with weight cutting benefits.  The SLL Flashlights have a 5 function switch that you can  choose from 100%, 50%, 10% , strobe, and SOS. All SLL Flashlights use optical grade lenses and superior reflectors producing a perfect beam. Our SLL flashlights will have no dead spots or erratic beam projection like other so called Military Flashlights. Try the New SLL flashlight lineup today and if you are not completely satisfied return it for a full refund. All lights come with a Limited Lifetime Warranty.