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NiteRider Sentinel 250 Rear Light

Mfg PartNum:5089
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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.
Ordered by Most Relevant First
5 stars
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1 stars
Reviewed 5/17/2019
by Anonymous
Cycling Enthusiast
San Diego
Value Rating
Overall Rating
Very poor battery life

Not easy to use and battery life is terrible.

Planning to return the item.

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Reviewed 12/13/2018
by Houston Bike Boy
Daily Commuter
Houston, Texas
Value Rating
Overall Rating
I look behind me and see the red blinking flash on stop signs blocks away.

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

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Reviewed 12/7/2018
by jessatrest
Cycling Enthusiast
Green Bay, WI
Value Rating
Overall Rating
Drivers will see you and that is a neccesity while being on the road.

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

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Reviewed 10/18/2018
by Bike71
Competitive Racer
Long Island,NY
Value Rating
Overall Rating
1 of 2 customers found this review helpful.
Disappointed in the product

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

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