Kryptonite Alley F-650

– Modes include High Steady, Low Steady, DayTime Pulse, NightTime Pulse, and Economic Flash
– Fully USB rechargeable: no batteries to buy or replace
– Runtime up to 26 hours
– Memory function: light turns on at the last mode it was turned off
– Power saving function: 10% power or less, lights will automatically switch to lowest lumen output
– Side Illumination ports allow cyclists to be seen when riding across traffic lanes