Cateye Viz Rear Light.

Cateye: Super bright 450 Lumen visibility day or night. Get the ultimate power in rear bike lighting with the all new ViZ450 which pumps out an impressive 450 lumens thanks to CatEye;s OptiCube lens technology. The high powered 5 LED versatile ViZ450 stands out with the powerful of Daytime Hyperflash mode and the friendliness of Group Ride mode. In addition, the ViZ 450 has fast charging and an impressive 65hour maximum runtime to keep you going on those epic journeys. The innovative new Snap System bracket is simple to fit and place in your preferred position on the bike including modern flat back aero seat posts. The modern design makes this safety light into a stylish essential accessory to keep you riding anytime, day or night. The ViZ Family of lights all come with our highly visible 300 side visibility, to give you more confidence safety the whole year round. FEATURES: 5 LEDs (450 lmUp to 65 hours runtime Focused lens for maximum visibility Highly visible during daytime Superior 300 degree visibility Long rear beam projection Clear OptiCube lens technology Lithiumion rechargeable battery USB rechargeable (MicroUSB cable includedLow battery indicator 4 modes: Constant / Flashing / Group Ride / Daytime Hyperflash Mode memory function Battery Auto Save (The mode automatically changes to flashing when the battery power gets low. New seat post bracket SP15 which fits contemporary (Kammtailaero seatpost Snap System bracket Weight: Only 45g Designed in Japan RUNTIME: Constant (40 lumens:5 hrs Flashing (40 lumens:65 hrs Group Ride (130 lumens:10 hrs Daytime Hyperflash (450 lumens:14 hrs Charging time (From empty: 3 hrs TECHNOLOGIES: Opticube Our proprietary OptiCube lens technology maximizes brightness for greater visibility. Snap System Allows riders to place rear lights on various locations in both horizontal and vertical orientations. Side Visibility Provides 300 visibility from the side to increase safety. Low Battery Indicator Alerts when remain.