no 850lm Continuous power

The only hacking: 850lm is only available in Boost mode, which turns off in about 30sec, otherwise the LED is destroyed.
Continuous power are max 350lm. The Description of product is therefore at Amazon but also in LED Lenser itself misleading.

Because there is, especially in mountain bike sector, brighter lights, but for 4 times the price.

Ansosnten good head lamp, which leaves nothing auser of lightness, almost nothing to be desired.