FAQ

Untighten the screw from the nut and bracket. Place one finger on the flap and carefully slide open the protective cover. Replace… READ MORE
As soon as it is dark enough and the movement sensor senses movement, the light turns immediately on. The Auto version of… READ MORE
The green light is a low-battery indicator. It is signalling with green light when the batteries should be exchanged. READ MORE
All Herrmans dynamo and e-bike rear lights are equipped with a rectifier, so you don’t need to pay attention to the polarity… READ MORE
All Herrmans e-bike front lights for 6-12V deliver the same light output on both 6V and 12V. The electrical power is also… READ MORE
All Herrmans dynamo and e-bike rear lights are equipped with a rectifier, so you don’t need to pay attention to the polarity… READ MORE
HERRMANS® is a company based in Finland which designs and manufactures grips, lights, chain guards, reflectors and rim tapes for the bicycle… READ MORE