LED technology offers twice the brightness and uses half the power. -Powerful 9.2 Volt Li-ion battery pack with over two hours of run time on high and over 40 hours on low! -Battery can be clipped to a belt and also fits easily into a pocket -Push-button battery status indicator -USB charging cable can be connected to the included wall plug adapter or the included A/C adapter -CNC Aluminum headlamp housing provides rugged durability -The light is watertight for downpours and missteps into a creek -The light even has a strobe function