Key Features:High-performance LED cycling light..Compact, durable and heat-dissipating machined aluminium body. .Two market-leading, ultrahigh-output LEDs delivering up to 1100 lumens. Optional Overdrive Race Mode toggles between Overdrive and Economy modes only. Mode Memory function returns to selected mode after turning off. .Enhanced MOR (Maximum Optical Reflection) lens with side visibility. .High-speed 2 Amp USB charging capabilities (with compatible wall adapter). .Versatile strap securely mounts to all standard bar shapes, including aero bars. .Advanced Li-Ion battery for superior run time..144g (including strap mount).Blast: 650 lumens, 2h:30min,Enduro: 450 lumens, 4h:30min,Economy: 150 lumens, 10h:00min,Femto: 15 lumens, 78h:00min,Flash: 150 lumens, 19h:00min,Pulse: 150 lumens, 18h:00min,Overdrive: 1100 lumens, 1h:20min.