Lezyne femto drive rear lightthe femto drive rear light from lezyne features an ultra compact safety light with integrated lens onoff switch a side visibility lens extends beyond the body to provide 180 degrees of visibility this rear light delivers up to 7 lumens with five outputflash options front light featuresmax lumens 7run time 1hrbattery cr2032weight 31gbuylezyne accessoriesfrom chain reaction cycles the worlds largest online bike store