Omega might be the last letter of the Greek alphabet, but it comes in first in lumen count among NiteRiderA(R) taillights. NiteRiderA(R) puts those 330 lumens to work not only during the night, and providing Optimal VIZ in the day as well with its Daylight Visible Flash (DVF). FEATURESa Lumen Output: 330a 6 Modes with Run Times: 6:00-36:30ha Charge Time: 2:15ha Weight: 79ga Water / Dust Resistant IP64 Rateda Micro USB Rechargeable RUN TIMES*Max Flash - 6:00hFast Flash - 17:30hDisco Flash - 9:30hPulse Flash - 6:30hHigh Steady - 7:00hLow Steady - 36:30h