New 100 lumen Cree LED. No more uncomfortable headlamps or having to carry a flashlight. Experience the comfort, stability, and improved night vision, depth perception, and peripheral vision with GoMotion’s innovative body mounted lighting systems. The 100 Lumen SLK Retrofits to Existing Packs. Designed for hikers and endurance runners who want to use their existing packs when hiking or running in low-light conditions. Mounts to existing shoulder straps at chest level by two velcro straps in hex-mesh construction. Features include: hi-output 100 L Cree LED with separate battery box, hard-wired power cord, beam width adjustment, brightness control, and angle adjustment for optimum trail use.