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Knog Boomer USB Rechargeable Rear Bike Light

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Knog Boomer USB rechargeable rear bike light is slim, stylish and bright, and easy to recharge via USB port, making it wonderfully versatile.

  • Super-bright, high-powered central red LED and 2 peripheral flashing red LEDs offer excellent visibility; light output can reach as high as 15 lumens
  • Rechargeable lithium-ion polymer battery offers up to 12 hrs. of flashing use (3.5 hrs. steady); low battery indicator in lens lets you know when it's time to recharge
  • Recharging the Boomer is easy—simply slide the light unit out of the flexible silicone body and plug into a USB port
  • Offers 5 useful modes: strobe flash, fast flash, random flash, constant on and a storage mode for periods when light will not be used for a month or longer
  • Water-resistant, slim, flexible and finish-friendly silicone body of the Boomer stretches around seat post or frame for easy mounting; no extra mounting hardware necessary


Item 814762

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Knog Boomer USB Rechargeable Rear Bike Light Specs
Best use
Lithium-Ion polymer
3.5 hours
12 hours
46 grams
Bulb type
Number of bulbs
Taillight mounting
Charge time
Integrated battery
Battery life on high
Battery life flashing

Knog Boomer USB Rechargeable Rear Bike Light

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