First, I have the batteries are fully charged, although this takes a long time (6 hours per battery pack / 2 pcs. In delivery), is for me not a problem. The battery pack can be personalized with the bag supplied without problems to the frame or handlebar mount, the velcro has held up well for me, and the cables are long enough.
By plugging together of lamp and battery, the green status LEDs the lamp switch on. Here would be a switch for turning on / off to recommend this I build myself afterwards.
The brightness on the first stage super, at level 2 and three, it is the madness, Stage 1 is as absolutely sufficient if you do not go into the terrain. On trails or in the woods I turned Level 2, Level 3 only once briefly to the test, but is as bright as sufficient absolute level 1-2.
The light makes a circular cone forward, accordingly, the lamp is not approved for road traffic. Here I have the lamp simply turned slightly forward, motorists have not complained.
On street and crushed the lamp is firmly seated, or the on trails. With small jumps, the lamp had sometimes shifted slightly with me, but was rather the fact that I had used the larger rubber ring, here I get to the smaller, then holds it certainly better.
In the 2-hour tour, I had the lamp usually at level 1, level 2 and hardly rare at level 3 in operation. After the tour were on the lowest level 1 every three LEDs on the lamp.
Conclusion:
Strong buy recommendation!
Price performance is great, brightness is great.