German brand Supernova always create interesting stuff and the new self-contained Airstream is no exception. They use a unique multi-faceted, multi-cell, hollow centre lens in front of a single LED.
This produces a beam that’s best described as a curved moustache shape, with a vaguely lit beard underneath. This actually gives decent coverage on the near sides of the trail and a few metres in front of the wheel.
A lot of random dark patches mean it’s tricky to pick out technical detail though, and the light’s not helmet mountable. Otherwise the O-ring mounted unit is very neat, with a battery indicator light next to the on switch and backlit Supernova logos on the side.
![](https://c02.purpledshub.com/uploads/sites/39/2019/03/1288955323419-1r7o4jng1t5nh-07bcdba.jpg?webp=1&w=1200)
For more information on how we tested this year's crop of lights, see our latest buyer's guide to mountain bike lights and Tested: 30 high-power mountain bike lights.