I was looking for a not too big and valued bicycle lamp and have it to the Sigma Roadster found. Visually it fits really cool on my Scott Atacama and the material handled at very high quality and robust. The holder has given no cause for complaint and sitting on the handlebars. Certainly nothing to with full speed at night across race through the woods (for that there are other but also much more expensive bulbs), but for the city, dimly lit paths or even night rides on developed roads it is enough for me all the time. And seen it is also excellent with the strong LED. The burn time is also great and with Sanyo eneloop batteries you are there well-equipped. Buy recommendation for the normal user !!!