I bought because of the striking many extremely euphoric reviews here in combination with a rear light the lamp. With respect to this euphoria is for me in retrospect clear suspicion of manipulation! Good (but not outstanding), the brightness, the dibasic processing acting and the usefulness as a flashlight. Poor's: 1. round light cone, since the part just really just a flashlight (a lot of fun in the dark corners!) 2. mount on the handlebars - is bad tighten (at least without pliers that would but the rubber wheel wreck) and remains unstable due to the far forward center of gravity, the law heavy lamp 3. Fixing the holder - impossible without unreliable with gloves 4. Programming - You have to keep clicking through 5 programs in between are each "off" (why does a cyclist actually "SOS" and "strobe" ?? How wärŽs it with a simple flashing light?) 5. Shows the cyclists because a transparent ring is inserted, the flat also radiates upwards (you can replace it with the supplied rings in red or black - then you will be just bad viewed from the side) 6. Quality - the first trial over an ordinary forest trail began the lamp to become self cycle through the programs. In complete darkness that was very interesting, as there are between the individual switching stages this senseless "off" position. For this, the lamp followed her focus again and tipped forward from. Most recently, the system had stabilized: The lamp pointed down and blinked happily "SOS" ... All in all this is a flashlight that is to be sold off in addition also to cyclists.
