DescriptionThe NiteRiderA(R) Lumina(TM) 1200 Boost provides enough light for just about all riding conditions. Mount securely on your handlebar when riding on the road or riding mountain bike trails.1200 Lumen output7 Modes (detailed below)3 to 6 hour charge timeLi-Ion batteryLow battery indicatorModes and Run Times:Low: 6 hours at 275 lumensMed: 3 hours at 550 lumensHigh: 1.5 hours at 1000 lumensBoost: 1 hour at 1200 lumensPulse Flash: 10 hours at 1000 lumensFast Flash: 6.5 hours at 1000 lumensWalk: 18 hours at 75 lumensWhats Included?LED Light HeadInternal Li-Ion BatteryHandlebar Mount fit up to 35mmUSB Charging cable