![NiteRider Sentinel 150](https://static.bikelightdatabase.com/media/lights/cover/sentinel150.jpg.960x720_q90.jpg)
- 4h 00min reported battery life
- flashing mode
- no pulse mode
- 2 brightness levels
- Included mounts:
The Sentinel is Niterider's taillight series with laser lane markers. These lights include a regular taillight functionality, and an integrated but separately toggled laser beam to illuminate lanes on the ground.