NiteRider Sentinel 250 Cycle Light -
NiteRider Sentinel 250 Cycle Light -
NiteRider Sentinel 250 Cycle Light -
NiteRider Sentinel 250 Cycle Light -
NiteRider Sentinel 250 Cycle Light -

NiteRider Sentinel 250 Cycle Light


Regular priceRs. 3,799.00
Tax included. Shipping calculated at checkout.

The NiteRider® Sentinel™ 250 is designed to increase cycling safety by way of 2 varying flash patterns and 2 steady beams (High/Group Ride Mode). Behind the durable red lens and casing are two powerful LEDs that emit 250 lumens in the brightest Daylight Visible Flash setting, allowing you to be seen day or night. For enhanced safety, the Laser Lane modes (3) are designed to project ultra-bright laser lines on the ground. This creates a virtual lane for the rider, further increasing visibility.

It Also features an innovative Group Ride Mode where you can be seen without distracting fellow cyclists’ attention from the pavement or dirt. At 116 grams the USB rechargeable Sentinel meets all required FL1 Standards for impact testing and dust/water resistance. The easy on-and-off seat post strap with quick release tab makes the Sentinel convenient when you do need to give it a quick charge.

The Sentinel™ 250 complies with FDA standard for lasers, notice No. 50, 2007

Adjustable Angle - FL1 Standards Tested - USB Rechargeable


  • Lumen Output: 250
  • 7 Modes with Run Times: 5:00 – 45:00hrs

  • Charge Time: 3:00hrs

  • Weight: 116g
  • Battery: Li-Po
  • Low Battery Indicator
  • 250 lumen Daylight Visible tail light with Laser Lanes
  • Water / Dust Resistant IP64 Rated

Run Times

Flash 1 - *6:30h
Flash 2 - *5:00h
High Steady - *8:00h
Low Steady - *45:00h
*No Lasers

Slow Flash Lasers - *14:00h
Fast Flash Lasers - *14:00h
Steady On Lasers - *7:00h
*Lasers Only

Quick Overview

  • Lumen Output: 250
  • Run Time: 5:00 – 45:00hrs
  • Charge Time: 3:00hrs
  • Weight: 116g
  • Battery: Li-Po
  • Daylight Visible Flash (DVF)
  • A wearable safety light – clip onto various straps, belt loops, etc.
  • Highly visible laser lanes
  • All in one, Laser and tail light!
  • Convenient USB rechargeable
  • Group Ride Mode – be seen without distracting fellow cyclists
  • Easy on and off seat post strap mount with quick release tab
  • FL1 Standard IP64, dust and water-resistant

System Include

  • LED Tail Light w/ Laser Lanes
  • Seat Post Mount
  • USB Charging Cable

Warranty Information

  • Limited lifetime warranty: Covers any defects in mechanical components (housings, covers, mounts and fasteners) and LEDs
  • 2-year warranty: Printed circuit boards, switches and AC adapters
  • 1-year Warranty: Rechargeable battery cells

About Niterider

Since 1989. Designed in San Diego, CA. USA
Dialed-in for optimized visibility

30 years ago NiteRider released the first high powered line of self-contained bike lights. With our custom reflectors, optics and circuitry; we’ve dialed-in the perfect combination that will give you added peace of mind to enjoy your ride while out on the roadways.


NiteRider is dedicated to designing the highest quality performance products, using the best materials and latest technologies and will always provide extraordinary customer service

  • NITERIDER Innovation firsts
  • First bike lighting company to bring LED bicycle lighting with USB Charging to the market
  • First to introduce to the market, Safety Flash modes and over discharge protection
  • Developed the first digitally controlled, rechargeable bicycle light system called the digital pro12. Awarded US Patent # 5,999,491 in 1999

Customer Reviews

Based on 6 reviews
Darshan Lad
Damaged product returned

I received a damaged product which I returned back on Aug 25th 2021. But after that there is no communication from Cyclop - it's been more than a week. I have written 3 emails about the product being picked up by their courier. Till date I have neither received the replacement product not the money.

Hi Darshan, Sorry about the delay in response. we noticed faulty light has been picked. Our team will get back to you on priority tomorrow to sort this out.

Exceptionally good product.

This is an exceptionally good product. True value for money.


NiteRider Sentinel 250 Cycle Light

Sooraj Nair

NiteRider Sentinel 250 Cycle Light

The Indian Cyclist
Robust & Powerful

Been using this light for about 3 months. The high power flash modes are easily bright enough to be clearly visible even during the day. Battery life is decent; as I switch between different modes based on need, I get about 5-6 hours out of a single charge (so for my use, I charge it on a weekly basis). The lasers are very bright as well, but haven't really given them a good run at night to see how it affects vehicles behind me, especially the impatient 2 wheelers. The low power indicator helps you charge before it runs out. I love the sleek looks, and how robust this little unit feels. The strap makes it easy to move between bikes if needed - no worries about the light jumping out of the clip or the strap coming loose. Well worth the price - would buy again!

Rohit Grover
Best rear light! I feel safe

This light can be seen from over a kilometer and super bright. I feel safe on highway rides not to be rear ended. and in close proximity traffic the laser lane lights do wonder. The cars maintain their distance, and I get to keep my own lane :) . very happy with my purchase. thanks Cyclop!

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