The lights make great light and good run time per charge. The bands for mounting are hard to get into the hooks on the body of the front light. If you're not super careful, the silicon rubber bands may launch into the abyss or under stuff never to be found again. Putting tape over one hook seems to help solve this , but forensic inspection is needed each time these lights are installed.
The lights are bright enough for short rides, stay charged pretty well so far, and seem to be durable. The drwawbacks are 1.) the rubber caps which allow access to charging ports aren't going to last. , and 2.) the rubber bands used for attachment will not last either (though it probably isn't too hard to replace them, there has to be a better design solution).
