This lighting is more powerful than my previous lamp (Sigma Pro LED) and the big advantage of being a single element lamp + battery. Beam are also wider which has the advantage of also illuminate the road in front of his wheel and not that far away. The mounting bracket is convenient as it rotates from left to right, thereby deflecting the beam when someone crosses, I find it easier than pressing the button, especially in winter with gloves.
The only negative is reloading which is somewhat capricious. The cycle does not end, for once. The lamp is still loaded, but the witness should have indicated the end of the charge ... It is also possible to load faster the lamp by connecting it to a powerful charger (iPad charger for example). This fast mode is difficult to obtain because the micro USB connector must be positioned very clear about that.