With a built-in USB port for charging on the go, the Streamlight ProTac HL USB with AC/DC Charger is a compact, powerful flashlight. TEN-TAP programming allows you to select from three different lighting options, with a runtime of up to 12 hours on low and a maximum light output of 850 lumens on high. LED Solid State Power Regulation maximizes light output to give you a bright, reliable beam of light. Built in an anodized, machined aircraft-grade aluminum body with an anti-roll head, this flashlight is impact-resistant up to 1 meter and IPX4 water-resistant to ensure maximum durability. This flashlight can also be powered with multiple battery types, and features a self-adjusting battery cradle to secure the power source without rattling. A 120V AC/12V DC wall adapter is included, ensuring that you have a charging option with you at all times.