NiteRider Sentinel 250 Taillight

NiteRider Sentinel 250 Taillight
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This is NiteRider's Sentinel 250 tail light. The Sentinel 250 has 4 light modes (2 flashing, 2 steady) and 3 Laser Lane modes. The Sentinel 250 tail light also features Group Ride Mode for cyclists who want to stay visible to cars but not distract others in the pack.


  • 4 Light Modes
  • 3 Laser Lane Modes
  • Group Ride Mode
  • Daylight Visible Flash (DVF)
Lumen Output: 250
Run Time: 5:00–45:00hrs
Charge Time: 3:00hrs
Battery: Rechargeable Li-Po
Weight: 116g
Tail Light modes:
  • Group Ride Mode (45:00hrs)
  • High (8:00hrs)
  • Pulse (5:00hrs)                                                           
  • Flash (6:30hrs)
Laser Lane Modes:
  • Flash (11:30hrs)
  • Quick Flash (11:30hrs)
  • Steady (5:00hrs) 


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