Cat Eye Vi Z150 Taillight Cateye Vi Z150 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. Vi Z150 features 1 center LEDs plus 2 side LEDs utilizing its 500m Ah lithium ion battery at maximum potential. Comes with 4 modes (Constant Flashing Daytime Hyperflash Group Ride) to choose from. Features Highly visible during daytime300 degree visibility Lithium-ion rechargeable battery USB-C rechargeable Low battery indicator Mode memory function | Cateye | Viz150 Taillight Black