The Mona days is easy, the attached Velcro strips one need not actually in the assembly on the bike. With the built-in rubber bands can attach the two lights in a few seconds on your bike and removed again.
It is so well seen in any case at any time day or night, but the front LED is not really suitable for complete darkness. The light beam is very narrow and extends only about 3 meters wide. So there is no street lighting available, you can go hardly faster than walking pace, as you just hardly see anything. I can therefore imagine that these lights are approved for road traffic.
