Ultra-compact, extremely light weight, high-performance LED light features the latest in power LED technology and lithium batteries for a combined performance at the top of the headlight category. New C4 LED technology produces 2 to 3 times the output of previous LEDs. The Argo HP has been specifically engineered to minimize weight and maximize run time. The light's optimized center of gravity provides maximum wearer comfort and stability during use. This light offers high and low lighting modes and is packaged with an elastic head strap and rubber hard hat strap. Features Powered by two 3V CR123A lithium batteries C4 LED is 2X brighter than a Super high-flux LED Up to 1,800 candela peak beam intensity 62 lumens measured system output. Solid Sate Power Regulation provides maximum light output throughout battery life RUN TIME High Mode 100% Up to 6.5 hours of runtime to the 10% output level. Low Mode 25% Up to 30 hours of runtime to the 10% output level. Push Streamlight Scorpion Scorpion LED with Batteries