2015 Lights Shootout

Princeton Tec Swerve

The Princeton Tec Swerve will not win any tail light innovation awards but it does have a couple things going for it.

First, the light output is highly visible. Rear visibility and side visibility are excellent and the flashing mode has very good animation as the light seems to dance between back and side LEDs.

Next, the switch is a basic directional switch where flipping it up puts it in solid mode and going the other direction puts the light in flash mode. The switch is oversized as well and it makes it very easy to operate the light even with gloves on and in all-weather conditions.

The only downside really is the light is not rechargeable. It will run out of battery eventually and regularly if you are a bike commuter. Alkaline batteries can get expensive and they are often tossed in landfills. The Swerve operates on 2 AAA Alkaline batteries.

httpv://www.youtube.com/watch?v=N1uPCEyIcso&list=UUSOYbSsGkNJdUfVG-0AnTSgVideo: Test with the Princeton Tec Swerve Tail Light. Tail Light was shot from 20 yards away with a camera at fixed exposure. The light was pointed at the camera then turned to the side. Different flash modes were activated.


  • Good 180 degrees of visibility
  • Switch is very easy to operate


  • Not rechargeable


  • Price: $30
  • Time on High: 70 Hours in flash mode
  • Mounted Weight: 66 grams
  • Category: Tail Light

Overall Rating

4 Stars
4 out of 5 Stars

For more information visit www.princetontec.com.

This article is part of Mtbr and RoadBikeReview's 2015 Lights Shootout. To see all the bike lights tested CLICK HERE.