The Streamlight ProTac HL USB Headlamp offers a high-powered but lightweight area light that provides up to 1,000 lm and 20 hours of run-time. The light features a USB port for convenient recharging and three lighting modes. The high setting provides 1,000 lm over 232m, the medium setting provides 400 lm over 147m and the low setting provides 65 lm over 60m. The headlamp weighs 8.1 oz with the included battery and strap.