The XS G2.1 is the perfect balance of weight and output making it light enough for helmet and bright enough for the bars Upgraded models now have improved long term reliability as the USBC port has been removed from both the light and battery and lights now feature dedicated external cables Provides 2800 lumens with the convenience of a wireless remote and mobile app customization Adventure model has a smaller power supply than standard model Lightset includes: XS light head, remote, power cables, 31.8/35mm bar mount, Power Pack, and charging adapter cable Third party online retail sales prohibited