Ultra-compact, extremely light weight, high-performance LED headlight 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 lights optimized center of gravity provides maximum wearer comfort and stability during use. This headlight offers high and low lighting modes and is packaged with an elastic head strap and rubber hard hat strap.