Cateye ViZ150 Taillight has a compact and lightweight body with 150 lm output on Daytime Hyperflash mode in addition to 65 hours maximum run time on Flash mode. ViZ150 features 1 center LEDs plus 2 side LEDs, utilizing its 500mAh lithium ion battery at maximum potential. Comes with 4 modes (Constant, Flashing, Daytime Hyperflash, Group Ride) to choose from.