NEBO IllumaTrace (Patent-Pending) is a revolutionary technology that illuminates blood through an alternating strobe affect that vivifies and dulls blood for easy identification against various backgrounds and terrain DESIGN: Dual light modes allow you to transition between white light for illuminating your path back to camp or the patent-pending, IllumaTrace™ blood tracking mode with its three adaptive strobe rates LIGHT MODES: White (170 lumens): 2.5 hours / 80 meters, IllumaTrace Blood Tracker (150 lumens): 3 hours / 75 meters INCLUDED: Detachable Lanyard, Removable Belt Clip, USB-A to USB-C Cable NEBO: Illuminate the world with high quality LED products at a cost-effective price