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.
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.