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