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NiteRider
Sentinel 250 Rear Light

Mfg PartNum:5089
  (5 customer reviews)
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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.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

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Really Poor Light
rating
by terryohm
Competitive Racer

Very bright but terrible battery life. Charge time is really long too of up to 4 hours. Eventually wouldn't charge after a few months use and the usb socket failed. Don't buy.

Reviewed 6/1/2020
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Very poor battery life
rating
by Anonymous
Cycling Enthusiast
San Diego
0 of 1 customers found this review helpful.

Not easy to use and battery life is terrible.

Planning to return the item.

Reviewed 5/17/2019
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I look behind me and see the red blinking flash on stop signs blocks away.
rating
by Houston Bike Boy
Daily Commuter
Houston, Texas
1 of 1 customers found this review helpful.

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.
rating
by jessatrest
Cycling Enthusiast
Green Bay, WI
1 of 1 customers found this review helpful.

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
rating
by Bike71
Competitive Racer
Long Island,NY
1 of 3 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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