CATEYE Viz 100 rear light

100 Lumens Of Affordable Power And Runtime In A Lightweight Compact Body. Features: - 3 Leds (100 Lumens) - Focused Lens For Maximum Visibility - Highly Visible During Daytime - Superior 300 Degree Visibility - Long Rear Beam Projection - Opticube™ Lens Technology - Lithium-Ion Rechargeable Battery - Usb Rechargeable (Micro-Usb Cable Included) - Low 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 Sp-15 Which Also Fits Contemporary (Kammtail) Aero Seatpost - Snap System™ Bracket Runtime: - Constant (15 Lumens)： 5 Hrs - Flashing (10 Lumens)： 70 Hrs - Group Ride (35 Lumens)： 11 Hrs - Daytime Hyperflash (100 Lumens)： 15 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 Remaining Battery Gets Low. Daytime: - Can Be Used In The Daytime. All Weather Ipx4: - Can Be Used In Rainy Weather.