This is a truly amazing light. It features a premium CREE XP-G led that produces 180 Lumen of light on two AA batteries. The build quality and attention to detail is superior to anything I have seen and it will throw a beam more than 100 meters. At its low setting (something like 9 lumen) it's batteries will last approx 100 hours. Overall a great choice for a general, outdoor, flashlight.