This is just a tiny little tail light with some good animation and side visibility. Its claim to fame is it is rechargeable. At $35, that's quite an achievement.

Those CR2032 watch batteries are such a pain and so expensive. These lithiums last a long time in the bright flash mode and it will last 10 hours.


  • Price: $35
  • Claimed Lumens: 25 Lumens
  • Measured Lumens: 20 Lumens
  • Measured MTBR Lux: 0 Lux
  • Lumens per $: 0 Lumens
  • Lumens per gram: 0 Lumens
  • Time on High: 4:00 Hours
  • Charge Time: 1:45 Hours
  • Mounted Weight: 37 grams
  • Category: Flashlight/Commuter


  • It is rechargeable for $35


Mounting is just a rubber strap around the seatpost.

Mtbr Light Meter Measurements

This light measured 0 Lux on our ambient light measurement facility. The light output measurement is performed by placing a Lux light meter beside the light. Both are pointed at the ceiling (five feet above) of a dark room. This measurement uses the ambient light produced by the bike light.

Integrating Sphere Measured Lumens

This light measured 20 Lumens in an integrating sphere. Claimed Lumens by the manufacturer is 25 Lumens.

Compare all Lumen Tests here »

Compare all Tunnel Beam Patterns here »

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