Its machined aluminum body with cooling fins is lightweight and super rugged. It features eight output modes, with a class-leading 1000 lumen Daytime Flash mode. With its MOR (Maximum Optical Reflection) lens, light output is optimized and evenly dispersed. Battery runtime has increased by 11 hours for up to 87 hours of runtime. And its versatile strap securely mounts to variety of bar shapes and sizes. Remote Switch compatible.