You should charge the battery before first use takes a relatively long time, but keeps with me already for 7 days and has only one green light lost by the battery indicator (go every day for half an hour by bike) Each time I'd buy the light back.
Now the trick: What I noticed is that when I switch the light to "Level 3" my bike computer raises the speed indicator to zero at level 1 all goes back to normal had the Sigma Rox 6.0, the problem likely the steep-edged pulses of light cause since it's too bad isolated. So the light is not too close to the cycling computer if possible install! Thanks to prolet
