A beautiful bright light that illuminates good but not hidden, it is to be kept quite small and easy to stow. I find that very positive ever! However, unfortunately, is also the charging indicator so bright (the SIGMA on top) which makes it very uncomfortable green hidden when driving at night in real darkness that you have to stick it on to darken what the view also greatly improved. I find a pity. In addition, the holder is secured with quick release on the handlebars. What I find even more positive is the duration of the battery and the USB charge. Charger is not present but is necessary even the PC.