The light is very bright and you can choose between 9 different modes, which, however, most can. A big difference from comparable, but less expensive warning lights is that these here has a battery, which is in a power outlet or the cigarette lighter in the car can load either, which means that it remains a saving to constantly buy batteries. So far, not yet fully tested the duration of battery power, but seems to be sufficient. The magnet holds certainly not more than 100km / h, but it served its simple purpose that it considers somewhere. Total quality satisfactory, especially in terms of luminosity.
Overall satisfied, but if a battery does not interfere, there are also a number of less expensive lights.
