Reliability
We think this speaks for itself, however it seems to be a function not everyone always thinks about. There is nothing worse, or more dangerous, than finding yourself with a dead light in the middle of nowhere at night or a light suddenly turning off on a fast downhill descent. It is common issue plagued with cheap lights. LED drivers overheat, solder joints break, cheap components fail, or battery connections become loose. Mountain biking is unique in that it is an unforgiving environment for electronics. High frequency vibrations, big impulse forces from jumps, dust, dirt, water, heat and cold all put major stress on electronics. This is why the Focal Series put the reliability of the product as the number one goal. There are no soldered joints from the power input to fail. Electrical components with tight tolerances that were selected not for cost, but for reliability. Large thermal mass for the heat of the LED to sink directly into with the help of thermal interface material (TIM) to enhance the heat dissipation. Lastly there is always a reserve amount of power to get you back home safely in the event your ride goes on longer than planned.