The HM61R V2.0 has a new quick release system, enabling taking it off the headband in just one second. The magnet at the base enables putting the light on many metal surfaces. This light is compatible with the separately available helmet and handlebar mounts. - Output settings range from 5 to 1600 lumens - The light is delivered with a 18650 battery, but the light can also be used with two CR123A batteries - Durable aluminium body, made of A6061-T6 aluminium - Included: type 18650 battery, can also be used with two CR123A batteries - Charging happens via the included cable, charging time less than four hours - IP68 protected: dustproof, can handle temporary immersion to water - Five year guarantee - ANSI NEMA/FL1 class shockproof from 2 meters - Button lock - Included: HM61R V2.0, headstrap, Febix ARB-L18-3400 mAh battery, USB magnet charging cable, headband buckle, stainless belt clip, spare O ring and manual