actually it would have been very good to be seen such an additional illumination to faster and better on the road. With me holding the spoke Lichterfest only not quite the way I expected / hoped. A light is me already fallen out. And the luminosity can very quickly (battery). Drive about 15 minutes each day, in which I turn on the light. Already after 2 weeks left to the light of a lamp. Cheap solution. Not my taste. No assembly description. No recommendation.