HR20 is a versatile USB charging headlight with a wide range of run times, extremely light weight and impressive output for outdoor use. The CREE XP-L HI LED delivers an impressive floodlight of 1000 lumens. Powered by a 18650 lithium-ion rechargeable battery or two CR123 lithium batteries, it provides 360 hours of running time for headlamps. Rotating infinite brightness is adjustable, practical for outdoor applications. The patented reflector vacuum coated cup with floodlights and spotlights can be called the "outdoor lighting artifact".