Purchased as a replacement for a stolen, roughly 4-year-old identical lamp: Accustomed very good and uniform illumination, bright enough to also take the bike faster speeds to. Compared to the older lamp especially the improved switch occurs to this now switches without intermediate dropouts. Also, the supplied power cord is many times better than the old lamp: no more loose contacts due to faulty plug connection and fit! In particular, those who value a StVO- compliant illumination, the lamp is especially recommended this!