Review: Lupine Rotlicht Tail Light

Brake light function and auto brightness make this a safe light.

Lights Lights Shootout

2015 Lights Shootout

Lupine Rotlicht

What’s cool about it

The Lupine Rotlicht gets brighter when the cyclist comes to a stop. It also gets brighter when there’s more ambient light, like a car shining lights on it.

What is it

The Lupine Rotlicht is a 160 Lumen light with four different light modes are available: steady, flashing, wave pulse, and pulse. It has an accelerometer that allows it to function as a brake light. When you pull on the brakes and slow down significantly or come to a stop, the built in acceleration sensor turns the light brighter to gain more attention on the streets.

It is also light sensing and has automatic light adjustment depending on the ambient light. If for example a car comes closer, the light turns brighter, allowing the rider to become more visible.

Video: Test with the Lupine Rotlicht 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.

Integrating Sphere Measured Lumens

Claimed Lumens by the manufacturer is 160 Lumens. Compare all Lumen Tests here »

  • Features an accelerometer to function as a brake light
  • Has a light sensor to get brighter when cars are approaching
  • Aluminum construction
  • German reliability and engineering
  • Not everyone is ready to spend $125 on a tail light
  • Price: $125
  • Claimed Lumens: 160 Lumens
  • Mounted Weight: 50 grams
  • Category: Tail Light
Overall Rating

4.5 out of 5 Stars

Technologically, this is an awesome light with German engineering and best-of-breed safety features. But not everyone is ready for the $125 price point. But if you want to be safe and you’re ready for a light that will last decades, the Rotlicht is a good option.

For more information visit

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

About the author: Francis Cebedo

The founder of mtbr and roadbikereview, Francis Cebedo believes that every cyclist has a lot to teach and a lot to learn. "Our websites are communal hubs for sharing cycling experiences, trading adventure stories, and passing along product information and opinions." Francis' favorite bike is the last bike he rode, whether it's a lugged commuter, ultralight carbon road steed, singlespeed or trail bike. Indeed, Francis loves cycling in all its forms and is happiest when infecting others with that same passion. This obsessive personality has also turned him into a bit of an addict when it comes to high quality coffee and IPAs.

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  • bacon sandwich says:

    The rubber strap is not very robust. It snaps easily. Kind of a joke for the price.

  • DJ says:

    I have not been happy with the interface: pushing the button isn’t always simple, easy, or effective all of which make ANY tail-light ineffective for the basic purpose of safety. While it is technologically advanced, I prefer my cheaper tail-lights and am now using one with a camera… I wasted a lot of money just to have a Lupine.

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