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Sentinel 250 Rear Light

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NiteRider's Sentinel 250 Rear Light is designed to increase cycling safety with two varying flash patterns, two steady beams, and three laser lane modes. Two powerful LEDs, behind a durable red lens and casing, emit 250 lumens in the brightest setting, ensuring you're seen whether it's day or night. When more visibility is desired, switch to one of the Laser Lane modes which project ultra-bright laser lines on the ground, creating a highly visible virtual lane for the rider.

Features & Specs:

  • 7 modes - flashing and steady, with and without lasers.
  • Highly visible laser lanes.
  • Compliant with FDA standard for lasers, notice No. 50, 2007.
  • Meets FL1 Standard IP64; dust and water-resistant.
  • Easy on / off seat post strap mount with quick release tab.
  • Low battery indicator.
  • USB rechargeable.
  • Runtime: 5–45hrs.
  • Charge time: 3hrs.
  • Weight: 116g.
  • Battery: Li-Po.

Light Type: Rechargeable 

Ordered by Most Relevant First
5 stars
4 stars
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1 stars
I look behind me and see the red blinking flash on stop signs blocks away.
by Houston Bike Boy
Daily Commuter
Houston, Texas

I ride on the street 100% of the time. At night or on gray days the light decreases the likelihood of getting rear-ended.

Reviewed 12/13/2018
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Drivers will see you and that is a neccesity while being on the road.
by jessatrest
Cycling Enthusiast
Green Bay, WI

I love the different options that the product offers. I am seen very well.

Reviewed 12/7/2018
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Disappointed in the product
by Bike71
Competitive Racer
Long Island,NY
0 of 1 customers found this review helpful.

The light was of poor quality and initiating the illumination required the depressing a poor quality plastic tab. I felt extremely disappointed.Bike71

Reviewed 10/18/2018
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