Lightweight, compact and engineered to withstand extreme conditions and use. This bright LED cap light has 6 ultra bright white LED bulbs inside for extended viewing range. Powered by 2 pieces lithium cell CR2032 3V batteries. The fresh batteries can last 48 hours high intensity burn time continuously using. The life of the LED's is more than 100,000 hours. This LED cap light is also water resistant, shock proof. Attaches to the cap for the most practical, hand-free light source are available. It is ideal for detail working, mechanical man, hunting & training, camping and more.