I have the lumen specifications not trust anyway, but was still a little bit disappointed, because the lamp is slightly darker in Stage 1, when my Busch und Müller IQ premium under full load, which is specified by the manufacturer with 80 Lux. In stage 2, the Solar Storm then has a slight advantage and then it gets in step 3 again significantly lighter. On this point I can not agree with other reviewers who wrote that there is not much difference would seem to notice. However, the brightness of the spot surpasses not much the brightest of Trelock 950 ION, the "only" a bright spot centrally accuses the wheel.
Through the circular cone of light is in the near field to the left and not much illuminated right side of the front wheel, this one has the advantage of being able to recognize off-road or on poorly maintained bike paths accordingly, low hanging branches well.
Because the brightness is concentrated in one spot center, has probably felt dazzled not motorists, as I had forgotten even on a public road, off.
To no stress to have in the battery due to the risk of ingress of water, I have additional slips on a small plastic bag and the bag then so attached to the stem, that the cable is pointing downwards, so that it no water can hinfließen Battery.
With a single charge, I am now down almost 1 1/2 weeks to work until it was empty. Without having it now exactly rausgestoppt, I can extrapolate (7x average 40min), that it was something full load after only 3 times over 4.5 hours at continuous level 1.
Here, the Solar Storm incidentally an advantage over many (all?) Other "China firecrackers" because it has a 3-part charge indicator. So you will not just dies out, but still leaves enough time to safely get to your destination. If it goes down from 3 to 2 segments, one still has min. 15 minutes at level 1 in order to get home.
However, this display attracts permanently current, so I have got used to pull the plug overnight. Does not have to be.
All in all I am satisfied because I got a lamp for around 40 euros, which is on par or slightly lighter than twice as expensive bicycle lamps (BOOM IQ or Premium Trelock 950 ION), however, have the advantage that they StVZO are -zugelassen.
