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With efficient COB LEDs producing 330° of bright, red light, the 50-lumen Knog Lil' Cobber rear bike light easily clips onto your bike to help you be clearly seen from all angles.

  • Features

    • Efficient Chip on Board (COB) LEDs designed to provide maximum brightness level for up to 90% of the battery burn time for each mode
    • Attract attention with 8 preprogrammed light modes: max, mid, steady pulse, flash, rolling flash, side flash, disco flash and eco flash
    • Program additional settings or remove light modes you're not using with the Knog Modemaker app
    • Plugs directly into USB ports so you can recharge even without an extension cable
    • 100% waterproof so you can ride without worrying about the elements
    • Magnetic mount attaches to your bike tool-free with removable silicone straps that fit handlebars and seatposts of 22–32mm diameter
    • Accessories included: standard magnetic mount, aero mount and 3 interchangeable silicone straps
    • Charge time: 4 hrs. (LED will turn off when fully charged)


    View all Knog Rear Bike Lights
  • Technical Specs

    Best Use


    Bulb Type


    Number of Bulbs


    Max Light Output (Lumens)

    50 lumens

    Taillight Mounting

    Multiple Locations

    Battery Mount




    Charge Time

    4 hours


    Lithium polymer

    Integrated Battery


    Battery Life On High

    1.4 hours

    Battery Life On Low

    40 hours

    Battery Life Flashing

    7 hours


    0.8 ounces

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