Because my previous Radbeleuchtung appeared very poor relative to the illumination of the wheel of my wife, I decided to buy a new front lighting. I chose this product. Compared to my old lighting (16 lux), the new model now 80 lux. After installation convinced me the luminosity and also functions as Tagfahrmodus etc. The only minus is that the light does not include front reflectors as required by the Road Traffic Act. With a small mounted on the handlebars spotlight to eliminating the problem. A spotlight the company with built-in reflectors reduces the brightness to about 60 lux and came so not for me in question.