Exposure Sirius with Flare Weight: 84g, Output: 360 lumens Power: 2600mAh Lithium Ion battery, Burn time: 2h High, 4Medium, 6h Low Cable Free Design (CFD): A primary feature unique to Exposure Lights removes the hassle of cables and straps Smart Port Technology: Patented technology that enables a wide range of accessories to be used, rear lights, back-up power supplies, remote switches Includes: Sirius handlebar bracket, USB charger, Flare mounting bracket and battery