Features: C4 LED technology, impervious to shock with a 50,000 hour lifetime LED Solid State power regulation provides maximum light output throughout battery life 3 light output levels:High – 80 Lumens, 1550 candela peak beam intensity, 80 meter beam distance, 1.5 hours runtimeLow – 10 Lumens, 200 candela peak beam intensity, 28 meter beam distance, 30 hours runtimeStrobe - 5 hours runtime Multi-function, push-button tail switch for one-handed operation Optimized electronics provides regulated intensity Uses two AAA alkaline batteries (included) Durable and abrasion-resistant machined aluminum construction with Type II Mil-Spec anodized finish Anti-roll head prevents the light from rolling away when you set it down Removable pocket clip for easy access O-ring sealed glass lens IPX7; waterproof to 1 meter for 30 minutes 5.62" (14.27 cm) 2 oz. (57g) with batteries Streamlight limited lifetime warranty RoHS compliant