I bought a new bike and was very disappointed in the dark after the first ride. Search for a long time and read customer review's we then decided in spite of the price for the model "B & M Lumotec IQ CYO Premium T senso plus 80 lux". That was a super decision !!!! Only once my husband said that the lamp could grow without any major problems, Cables & ect. everything was there. He had to add only an extra screws. But that was probably because of my bike. I can only say the light is great, you can adjust so beautiful that is illuminated everything not only in front of the wheel, but it also illuminates with its LEDs well into the distance. So you can ride quite normally in the dark. Almost similar to my car, the low beam. There are three settings "Off", "to when it is dark" and "daytime running lights as a car". The light remains on for a while, which is very good if you like me, in the dark yet to unlock a door. As you can read I am very excited about my new lamp. I do not want to miss. I hope I could help you with my review a little.